Document:

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                                                                    EXHIBIT 10.9

                                   ICNT, INC.

                    THIRD RESTATED INVESTORS RIGHTS AGREEMENT

        THIS THIRD RESTATED INVESTORS RIGHTS AGREEMENT (the "Rights Agreement")
is entered into as of April 13, 2000, by and among ICNT, Inc., a California
corporation (the "Company") and the persons and entities listed on the List of
Investors attached hereto as Exhibit A (each hereinafter individually referred
to as an "Investor" and collectively referred to as the "Investors"). This
Rights Agreement supersedes and restates in its entirety that certain Second
Restated Investors Rights Agreement made and entered into as of March 28, 2000
(the "Second Restated Rights Agreement") by and among the Company, the Series A
Investors, the Series B Investors and the Series C Investor (each as defined
below).

                                    RECITALS:

        A. The Company has previously sold shares of its Series A Preferred
Stock (the "Series A Preferred") to certain investors (the "Series A Investors")
pursuant to a Series A Preferred Stock Purchase Agreement, dated as of July 16,
1999, (the "Series A Stock Agreement"). In connection with such sale, the
Company granted the Series A Investors certain rights, as set forth in the
Second Restated Rights Agreement.

        B. The Company has previously sold shares of its Series B Preferred
Stock (the "Series B Preferred") to certain investors (the "Series B Investors")
pursuant to a Series B Preferred Stock Purchase Agreement, dated as of December
21, 1999, (the "Series B Stock Agreement"). In connection with such sale, the
Company granted the Series B Investors certain rights, as set forth in the
Second Restated Rights Agreement.

        C. The Company has previously sold shares of its Series C Preferred
Stock (the "Series C Preferred") to Cabletron Systems, Inc. (the "Series C
Investor") pursuant to a Series C Preferred Stock Purchase Agreement, dated as
of March 28, 2000, (the "Series C Stock Agreement"). In connection with such
sale, the Company granted the Series C Investor certain rights, as set forth in
the Second Restated Rights Agreement.

        D. Concurrently herewith, certain investors (the "Series D Investors")
and the Company are entering into a certain Series D Preferred Stock Purchase
Agreement, dated of even date herewith, pursuant to which the Series D Investors
are purchasing from the Company up to 6,260,823 shares of the Company's Series D
Preferred Stock (the "Series D Preferred").

        E. This Rights Agreement amends the Second Restated Rights Agreement to
afford the purchasers of the Series D Preferred the same rights granted to the
holders of the Company's Series A Preferred, the Series B Preferred and Series C
Preferred. By their execution of this Rights Agreement, the Series A Investors,
the Series B Investors and Series C Investors each (i) agree to the amendment of
the Second Restated Rights Agreement as provided herein, (ii) consent of the
registration rights provided to the Series D Investor, (iii) waive their right
of first

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offer as set forth in the Second Restated Rights Agreement upon the issuance and
sale of the Series D Preferred, and (iv) agree to be bound by this Rights
Agreement.

        F. The Series A Investors, the Series B Investors, the Series C Investor
and the Series D Investors will hereinafter be referred to collectively as the
"Investors." The Series A Preferred, the Series B Preferred, the Series C
Preferred and the Series D Preferred shall hereinafter be referred to
collectively as the "Preferred Stock."

        G. The obligations of each of the Series D Investors to purchase their
respective amounts of Series D Preferred are conditioned upon, among other
things, the execution and delivery of this Rights Agreement by each of the
Investors and the Company.

                                   AGREEMENT:

        NOW, THEREFORE, in consideration for and of the foregoing and of the
mutual promises, covenants and conditions set forth herein and other good and
valuable consideration the receipt and sufficiency of which is hereby
acknowledged, the parties hereby agree as follows:

        1. Registration Rights.

               1.1 Definitions. As used in this Rights Agreement, the following
terms shall have the following respective meanings:

                      (a) The terms "register," "registered" and "registration"
refer to a registration effected by preparing and filing a registration
statement in compliance with the Securities Act of 1933, as amended (the
"Securities Act"), and the declaration or ordering of the effectiveness of such
registration statement.

                      (b) The term "Exchange Act" means the Securities Exchange
Act of 1934, as amended.

                      (c) The term "Registrable Securities" means (i) any and
all shares of common stock of the Company ("Common Stock") issued or issuable
upon conversion of the Preferred Stock (the "Conversion Shares"), (ii) any and
all shares of Common Stock or other securities issued or issuable in respect of
the Preferred Stock, and (iii) any and all shares of Common Stock or other
securities issued or issuable upon any conversion of the Preferred Stock upon
any stock split, stock dividend, recapitalization or similar event; provided,
however, that any and all shares described in clauses (i)-(iii) above which have
been resold to the public or are registered shall cease to be Registrable
Securities upon such resale and any shares as to which registration rights have
terminated pursuant to Section 1.13 below shall cease to be Registrable
Securities upon such termination.

                      (d) The terms "Holder" or "Holders" means any person or
persons to whom Registrable Securities were originally issued or qualifying
transferees under subsection 1.10 hereof who hold Registrable Securities.

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                      (e) The term "Initiating Holders" means any Holder or
Holders holding fifty percent (50%) or greater of the aggregate of the Preferred
Stock or Common Stock issued or issuable upon conversion thereof which are
Registrable Securities.

                      (f) The term "Securities Act" means the Securities Act of
1933, as amended.

                      (g) The term "SEC" means the Securities and Exchange
Commission.

                      (h) The term "Registration Expenses" shall mean all
expenses incurred by the Company in complying with subsections 1.2, 1.3 and 1.4
hereof, including, without limitation, all registration, qualification and
filing fees, printing expenses, escrow fees, fees and disbursements of counsel
for the Company, blue sky fees and expenses, and the expense of any special
audits incident to or required by any such registration (but excluding the
compensation of regular employees of the Company which shall be paid in any
event by the Company, Selling Expenses and fees and disbursements of legal
counsel for the Holders.)

                      (i) The term "Holder Affiliates" means any of the mother,
father, descendants, brother(s), sister(s), or spouse of any Holder or any
trustee or trustees for the benefit of any one or more of the foregoing
(including such mother, father, brother(s), sister(s) or spouse).

                      (j) The term "Selling Expenses" shall mean all
underwriting discounts, selling commissions and stock transfer taxes applicable
to the sale of Registrable Securities.

               1.2 Demand Registration.

                      (a) Request for Registration. In case the Company shall
receive from Initiating Holders a written request that the Company effect a
registration with respect to Registrable Securities, the Company will:

                           (i) within ten (10) days give written notice of the
proposed registration to all other Holders; and

                           (ii) as soon as practicable, subject to the
limitations set below, use its best efforts to effect all such registrations
(including, without limitation, the execution of an undertaking to file
post-effective amendments, appropriate qualifications under the applicable blue
sky or other state securities laws and appropriate compliance with exemptive
regulations issued under the Securities Act and any other governmental
requirements or regulations) as may be so requested and as would permit or
facilitate the sale and distribution of all or such portion of such Initiating
Holder's Registrable Securities as are specified in such request, together with
all or such portion of the Registrable Securities of any Holder or Holders
joining in such request as are specified in a written request given within
thirty (30) days after receipt of such written notice

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from the Company; provided, however, that the Company shall not be obligated to
take any action to effect such registration pursuant to this subsection 1.2(a):

                                (A) at any time prior to the earlier to occur of
(i) with respect to the Series A Investors, July 15, 2004, (ii) with respect to
the Series B Investors, December 20, 2004, (iii) with respect to the Series C
Investor, March 27, 2005, (iv) with respect to the Series D Investors, April 9,
2005, or (v) 180 days following the effective date of the registration statement
under the Securities Act for the Company's initial registered underwritten
public offering of its securities to the general public (other than a
registration statement relating either to the sale of securities to employees of
the Company pursuant to a stock option, stock purchase or similar plan or a SEC
Rule 145 transaction) (the "IPO");

                                (B) in any particular jurisdiction in which the
Company would be required to execute a general consent to service of process in
effecting such registration unless the Company is already subject to service in
such jurisdiction and except as required by the Securities Act;

                                (C) at any time prior to one (1) year following
the effective date of a registration statement filed pursuant to this subsection
1.2(a);

                                (D) after the Company has effected three (3)
such registrations, pursuant to this subsection 1.2(a) and such registrations
have been declared or ordered effective;

                                (E) during the period starting within the date
sixty (60) days prior to the Company's good faith estimate of the date of filing
of, and ending on a date ninety (90) days after the effective date of, a
Company-initiated registration; provided that the Company is actively employing
in good faith all reasonable efforts to cause such registration statement to
become effective; or

                                (F) If the Initiating Holders propose to dispose
of shares of Registrable Securities which may be immediately registered on Form
S-3 pursuant to a request made under Section 1.4 hereof.

        Subject to the foregoing clauses (A) through (F), the Company shall file
a registration statement covering the Registrable Securities so requested to be
registered as soon as practical, but in any event within ninety (90) days, after
receipt of the request or requests of the Initiating Holders; provided, however,
that if the Company shall furnish to such Holders a certificate signed by the
President or Chief Executive Officer of the Company stating that in the good
faith judgment of the Company's board of directors (the "Board of Directors"),
it would be detrimental to the Company and its shareholders for such
registration statement to be filed on or before the date filing would be
required and it is therefore essential to defer the filing of such registration
statement, the Company shall have the right to defer such filing for a period of
not more than one hundred twenty (120) days after the furnishing of such a
certificate of deferral; and provided further, however, that the Board of
Directors shall not exercise such right to defer a filing under this Section 1.2
(a) or under Section 1.4(d) more than once in any period of twelve (12)
consecutive months.

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                      (b) Underwriting. If the Initiating Holders intend to
distribute the Registrable Securities covered by their request by means of an
underwriting, they shall so advise the Company as part of their request made
pursuant to subsection 1.2(a) and the Company shall include such information in
the written notice referred to in subsection 1.2(a)(i). In such event, the
underwriter shall be selected by a majority in interest of the Initiating
Holders and shall be reasonably acceptable to the Company. The right of any
Holder to registration pursuant to subsection 1.2 shall be conditioned upon such
Holder's participation in such underwriting and the inclusion of such Holder's
Registrable Securities in the underwriting (unless otherwise mutually agreed by
a majority in interest of the Initiating Holders and such Holder) to the extent
provided herein. The Company shall (together with all Holders proposing to
distribute their securities through such underwriting) enter into an
underwriting agreement in customary form with the underwriter or underwriters.
Notwithstanding any other provision of this subsection 1.2, if the underwriter
advises the Initiating Holders in writing that marketing factors require a
limitation of the number of shares to be underwritten, the Initiating Holders
shall so advise all Holders who have elected to participate in such offering,
and the number of shares of Registrable Securities that may be included in the
registration and underwriting shall be allocated among all such Holders thereof
in proportion, as nearly as practicable, to the respective amounts of
Registrable Securities held by such Holders; provided, however, that the number
of shares of Registrable Securities to be included in such underwriting shall
not be reduced unless all other securities are first entirely excluded from the
underwriting. If any Holder of Registrable Securities disapproves of the terms
of the underwriting, such Holder may elect to withdraw therefrom by written
notice to the Company, the underwriter and the Initiating Holders. Any
Registrable Securities which are excluded from the underwriting by reason of the
underwriter's marketing limitation or withdrawn from such underwriting shall be
withdrawn from such registration.

                      (c) Company Shares. If the managing underwriter has not
limited the number of Registrable Securities to be underwritten, the Company,
employees of the Company and other holders of the Company's Common Stock may
include securities for its (or their) own account in such registration if the
managing underwriter so agrees and if the number of Registrable Securities which
would otherwise have been included in such registration and underwriting will
not thereby be limited.

               1.3 Company Registration.

                      (a) Registration. If at any time or from time to time, the
Company shall determine to register any of its securities, for its own account
or the account of any of its shareholders other than the Holders (other than a
registration relating solely to employee stock option or purchase plans, or a
registration relating solely to an SEC Rule 145 transaction, or a registration
on any other form or any successor to such form, which does not include
substantially the same information as would be required to be included in a
registration statement covering the sale of Registrable Securities), the Company
will:

                           (i) within thirty (30) days prior to the filing of
such registration statement give to each Holder written notice thereof; and

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                           (ii) include in such registration (and any related
qualification under blue sky laws or other compliance with applicable laws), and
in any underwriting involved therein, all the Registrable Securities specified
in a written request or requests, made within twenty (20) days after receipt of
such written notice from the Company, by any Holder or Holders, except as set
forth in subsection 1.3(b) below.

                      (b) Underwriting. If the registration of which the Company
gives notice is for a registered public offering involving an underwriting, the
Company shall so advise the Holders as a part of the written notice given
pursuant to subsection 1.3(a)(i). In such event the right of any Holder to
registration pursuant to subsection 1.3 shall be conditioned upon such Holder's
participation in such underwriting and the inclusion of such Holder's
Registrable Securities in the underwriting to the extent provided herein. All
Holders proposing to distribute their securities through such underwriting shall
(together with the Company and the other holders distributing their securities
through such underwriting) enter into an underwriting agreement in customary
form with the underwriter or underwriters selected for such underwriting by the
Company. Notwithstanding any other provision of this subsection 1.3, if the
underwriter determines that marketing factors require a limitation of the number
of shares to be underwritten, and (i) if such registration is the IPO, the
underwriter may limit the number of Registrable Securities to be included in the
registration and underwriting, or may exclude Registrable Securities entirely
from such registration and underwriting, or (ii) if such registration is other
than the IPO, the underwriter may limit the amount of securities to be included
in the registration and underwriting by the Company's shareholders; provided,
however, the number of Registrable Securities to be included in such
registration and underwriting under this subsection 1.3(b)(ii) shall not be
reduced to less than thirty percent (30%) of the aggregate securities included
in such registration without the prior consent of the Holders of not less than a
majority of the Registrable Securities proposed to be included in such
registration and underwriting. In the event of a cutback by the underwriters of
the number of Registrable Securities to be included in the registration and
underwriting, the Company shall so advise all Holders of Registrable Securities
which would otherwise be registered and underwritten pursuant hereto, and the
number of shares of Registrable Securities that may be included in the
registration and underwriting shall be allocated among Holders requesting
registration in proportion, as nearly as practicable, to the respective amounts
of Registrable Securities held by each of such Holders as of the date of the
notice pursuant to subsection 1.3(a)(i) above; provided, however, that in no
instance shall shares of any other selling shareholder be included in such
registration and underwriting if such inclusion would reduce the number of
shares of Registrable Securities held by the Holders able to be included in such
registration and underwriting. If any Holder disapproves of the terms of any
such underwriting, he may elect to withdraw therefrom by written notice to the
Company and the underwriter. Any Registrable Securities excluded or withdrawn
from such underwriting shall be withdrawn from such registration.

               1.4 Form S-3. In addition to the rights and obligations set forth
in subsection 1.2(a) above, if Holders holding thirty percent (30%) or more of
the Registrable Securities then outstanding request that the Company file a
registration statement on Form S-3 (or any successor to Form S-3) for the public
offering of shares of Registrable Securities, the reasonably anticipated
aggregate price to the public of which (net of underwriting discounts and

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commissions) would exceed One Million Dollars ($1,000,000) and the Company is
then a registrant entitled to use Form S-3 to register the shares for such an
offering, the Company shall use its best efforts to cause such shares to be
registered for the offering as soon as practicable on Form S-3 (or any successor
form to Form S-3); provided, however, the Company shall not be required to
effect a registration pursuant to this subsection 1.4:

                      (a) in any particular jurisdiction in which the Company
would be required to execute a general consent to service of process in
effecting such registration, qualification or compliance unless the Company is
already subject to service in such jurisdiction and except as may be required by
the Securities Act;

                      (b) if the Company, within twenty (20) days of the receipt
of the request of the notice described in subsection 1.4, gives notice of its
bona fide intention to effect the filing of a registration statement with the
SEC within one hundred twenty (120) days of receipt of such request (other than
with respect to a registration statement relating to a Rule 145 transaction, an
offering solely to employees or any other registration which is not appropriate
for the registration of Registrable Securities), and does so file within said
one hundred twenty (120) day period and makes reasonable efforts to cause such
registration to become effective;

                      (c) during a period of one hundred eighty (180) days
following the effective date of a registration statement other than registration
statements filed pursuant to this subsection 1.4;

                      (d) if the Company shall furnish to the Holders requesting
registration under section 1.4(a) a certificate signed by the President or Chief
Executive Officer of the Company stating that in the good faith judgment of the
Board of Directors, it would be detrimental to the Company and its shareholders
for such registration statement to be filed on or before the date filing would
be required and it is therefore essential to defer the filing of such
registration statement, in which case the Company shall have the right to defer
such filing for a period of not more than one hundred (120) days after the
furnishing of such a certificate of deferral; provided, however, that the Board
of Directors shall not exercise such right to defer a filing more than once in
any period of twelve (12) consecutive months period; or

                      (e) if the Company has, within the twelve (12) month
period preceding the date of a request to register shares on Form S-3 already
effected two registrations on Form S-3 for the Holders pursuant to this
Subsection 1.4.

               1.5 Expenses of Registration. All Registration Expenses incurred
in connection with any registration pursuant to this Section 1 shall be borne by
the Company except as follows:

                      (a) The Company shall not be required to pay for expenses
of any registration proceeding begun pursuant to subsection 1.2 or 1.4, the
request for which has been subsequently withdrawn by the Initiating Holders (in
which case, such expenses shall be borne by the Holders requesting such
withdrawal); provided, however, that in lieu of paying such

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expenses, a majority in interest of the Initiating Holders may elect to forfeit
their right to request one registration under Section 1.2.

                      (b) The Company shall be required to pay the Registration
Expenses of the first registration pursuant to subsection 1.2 and the second and
third registrations pursuant to subsection 1.2 unless such second and third
registrations are effected within the first 12 months after the closing of the
Company's initial public offering.

               1.6 Registration Procedures. In the case of each registration,
qualification or compliance effected by the Company pursuant to this Rights
Agreement, the Company will keep each Holder participating therein advised in
writing as to the initiation of each registration, qualification and compliance
and as to the completion thereof. Except as otherwise provided in subsection
1.5, at its expense the Company will:

                      (a) Prepare and file with the SEC a registration statement
with respect to such Registrable Securities and use its best efforts to cause
such registration statement to become effective, and, upon the request of the
Holders of a majority of the Registrable Securities registered thereunder, keep
such registration statement effective for up to ninety (90) days or, if a
shorter period, until securities included in the registration statement are
sold; provided, however, that (i) such 90-day period shall be extended for a
period of time equal to the period the Holder refrains from selling any
securities included in such registration at the request of an underwriter of
Common Stock (or other securities) of the Company; and (ii) in the case of any
registration of Registrable Securities on Form S-3 which are intended to be
offered on a continuous or delayed basis, such 90-day period shall be extended,
if necessary, to keep the registration statement effective until all such
Registrable Securities are sold, provided that Rule 415, or any successor rule
under the Act, permits an offering on a continuous or delayed basis, and
provided further that applicable rules under the Act governing the obligation to
file a post-effective amendment permit, in lieu of filing a post-effective
amendment which (i) includes any prospectus required by Section 10(a)(3) of the
Act or (ii) reflects facts or events representing a material or fundamental
change in the information set forth in the registration statement, the
incorporation by reference of information required to be included in (i) and
(ii) above to be contained in periodic reports filed pursuant to Section 13 or
15(d) of the 1934 Act in the registration statement.

                      (b) Prepare and file with the SEC such amendments and
supplements to such registration statement and the prospectus used in connection
with such registration statement as may be necessary to comply with the
provisions of the Securities Act with respect to the disposition of all
securities covered by such registration statement.

                      (c) Furnish to the Holders such numbers of copies of a
prospectus, including a preliminary prospectus, in conformity with the
requirements of the Securities Act, and such other documents as they may
reasonably request in order to facilitate the disposition of Registrable
Securities owned by them.

                      (d) Use its best efforts to register and qualify the
securities covered by such registration statement under such other securities or
Blue Sky laws of such United States

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jurisdictions as shall be reasonably requested by the Holders, provided that the
Company shall not be required in connection therewith or as a condition thereto
to qualify to do business or to file a general consent to service of process in
any such states or jurisdictions.

                      (e) In the event of the IPO, enter into and perform its
obligations under an underwriting agreement, in usual and customary form, with
the managing underwriter of such offering. Each Holder participating in such
underwriting shall also enter into and perform its obligations under such an
agreement.

                      (f) Notify each Holder of Registrable Securities covered
by such registration statement at any time when a prospectus relating thereto is
required to be delivered under the Securities Act or the happening of any event
as a result of which the prospectus included in such registration statement, as
then in effect, includes an untrue statement of a material fact or omits to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading in the light of the circumstances then
existing.

                      (g) Cause all such Registrable Securities registered
pursuant hereunder to be listed on each securities exchange or market on which
similar securities issued by the Company are then listed or quoted.

                      (h) Furnish, at the request of any Holder requesting
registration of Registrable Securities pursuant to this Section 1, on the date
that such Registrable Securities are delivered to the underwriters for sale in
connection with a registration pursuant to this Section 1, if such securities
are being sold through underwriters, or, if such securities are not being sold
through underwriters, on the date that the registration statement with respect
to such securities becomes effective, (i) an opinion, dated such date, of the
counsel representing the Company for the purposes of such registration, in form
and substance as is customarily given to underwriters in an underwritten public
offering, addressed to the underwriters, if any, and to the Holders requesting
registration of Registrable Securities and (ii) a letter dated such date, from
the independent public accountants of the Company, in form and substance as is
customarily given by independent certified public accountants to underwriters in
an underwritten public offering, addressed to the underwriters, if any, and to
the Holders requesting registration of Registrable Securities.

                      (i) No Holder shall have any right to obtain or seek an
injunction restraining or otherwise delaying any such registration as the result
of any controversy that might arise with respect to the interpretation or
implementation of this Section 1.

               1.7 Indemnification.

                      (a) The Company will indemnify and defend each Holder of
Registrable Securities and each of its officers, directors and partners, and
each person controlling such Holder, with respect to which a registration,
qualification or compliance has been effected pursuant to this Rights Agreement,
and each underwriter, if any, and each person who controls any underwriter of
the Registrable Securities held by or issuable to such Holder, against all
claims, losses, expenses, damages and liabilities (or actions in respect
thereto) arising out of or

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based on any untrue statement (or alleged untrue statement) of a material fact
contained in any registration statement or prospectus incident to such
registration, or based on any omission (or alleged omission) to state therein a
material fact required to be stated therein or necessary to make the statement
therein not misleading, or any violation or alleged violation by the Company of
the Securities Act, the Exchange Act or any state securities law applicable to
the Company or any rule or regulation promulgated under the Securities Act, the
Exchange Act or any such state law and relating to action or inaction required
of the Company in connection with any such registration, and will reimburse each
such Holder, each of its officers, directors and partners, and each person
controlling such Holder, each such underwriter and each person who controls any
such underwriter, for any reasonable legal and any other expenses incurred in
connection with investigating, defending or settling any such claim, loss,
damage, liability or action; provided, however, that the indemnity agreement
contained in this subsection 1.7(a) shall not apply to amounts paid in
settlement of any such claim, loss, damage, liability, or action if such
settlement is effected without the consent of the Company (which consent shall
not be unreasonably withheld); and provided further, that the Company will not
be liable in any such case to the extent that any such claim, loss, damage or
liability arises out of or is based on any untrue statement or omission based
upon written information furnished to the Company by such Holder or underwriter
specifically for use therein; and provided further, that the agreement of the
Company to indemnify any underwriter and any person who controls such
underwriter contained herein with respect to any such preliminary prospectus
shall not inure to the benefit of an underwriter, from whom the person asserting
any such claim, loss, damage, liability or action purchased the stock which is
the subject thereof, if at or prior to the written confirmation of the sale of
such stock, a copy of the prospectus (or the prospectus as amended or
supplemented) was not sent to delivered to such person, excluding the documents
incorporated therein by reference, and the untrue statement or omission of a
material fact contained in such preliminary prospectus was corrected in the
prospectus (or the prospectus as amended or supplemented).

                      (b) Each Holder will, if Registrable Securities held by or
issuable to such Holder are included in the securities as to which such
registration, qualification or compliance is being effected, indemnify and
defend the Company, each of its directors and officers, each underwriter, if
any, of the Company's securities covered by such a registration statement, each
person who controls the Company within the meaning of the Securities Act, and
each other such Holder, each of its officers, directors and partners and each
person controlling such Holder, against all claims, losses, expenses, damages
and liabilities (or actions in respect thereof) arising out of or based on any
untrue statement (or alleged untrue statement) of a material fact contained in
any registration statement or prospectus incident to such registration, or any
omission (or alleged omission) to state therein a material fact required to be
stated therein or necessary to make the statements therein not misleading, and
will reimburse the Company, such Holders, such directors, officers, partners,
persons or underwriters for any reasonable legal or any other expenses incurred
in connection with investigating, defending or settling any such claim, loss,
damage, liability or action, in each case to the extent, but only to the extent,
that such untrue statement (or alleged untrue statement) or omission (or alleged
omission) is made in such registration statement, offering circular, prospectus
or other document in reliance upon and in conformity with written information
furnished to the Company by the Holder in an instrument duly executed by such
Holder specifically for use therein; provided, however, that the indemnity
agreement contained in this subsection 1.7(b) shall not apply to amounts paid in
settlement of

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any such claim, loss, damage, liability or action if such settlement is effected
without the consent of the Holder (which consent shall not be unreasonably
withheld); and provided further, that the total amount for which any Holder
shall be liable under this subsection 1.7(b) shall not in any event exceed the
aggregate gross proceeds received by such Holder from the sale of Registrable
Securities held by such Holder in such registration not including underwriter's
commissions and discounts.

                      (c) Each party entitled to indemnification under this
subsection 1.7 (the "Indemnified Party") shall give notice to the party required
to provide indemnification (the "Indemnifying Party") promptly after such
Indemnified Party has actual knowledge of any claim as to which indemnity may be
sought, and shall permit the Indemnifying Party to assume the defense of any
such claim or any litigation resulting therefrom; provided, however, that
counsel for the Indemnifying Party, who shall conduct the defense of such claim
or litigation, shall be approved by the Indemnified Party (whose approval shall
not be unreasonably withheld), and the Indemnified Party may participate in such
defense at its own expense; and provided further, that the failure of any
Indemnified Party to give notice as provided herein shall not relieve the
Indemnifying Party of its obligations hereunder, unless such failure resulted in
prejudice to the Indemnifying Party; and provided further, however, that an
Indemnified Party (together with all other Indemnified Parties which may be
represented without conflict by one counsel) shall have the right to retain one
separate counsel, with the fees and expenses to be paid by the Indemnifying
Party, if representation of such Indemnified Party by the counsel retained by
the Indemnifying Party would be inappropriate due to a conflict of interests
between such Indemnified Party and any other party represented by such counsel
in such proceeding. No Indemnifying Party, in the defense of any such claim or
litigation, shall, except with the consent of the Indemnified Party, consent to
entry of any judgment or enter into any settlement which does not include as an
unconditional term thereof the giving by the claimant or plaintiff to such
Indemnified Party of a release from all liability in respect to such claim or
litigation. No Indemnified Party shall be entitled to indemnification hereunder
if such Indemnified Party consents to entry of any judgment or enters into any
settlement without the consent of the Indemnifying Party. Any Indemnified Party
shall cooperate with the Indemnifying Party in the defense of any claim or
litigation brought against such Indemnified Party.

                      (d) If the indemnification provided for in this Section
1.7 is held by a court of competent jurisdiction to be unavailable to an
Indemnified Party with respect to any losses, claims, damages or liabilities
referred to herein, the Indemnifying Party, in lieu of indemnifying such
Indemnified Party thereunder, shall, to the extent permitted by applicable law,
contribute to the amount paid or payable by such Indemnified Party as a result
of such loss, claim, damage or liability in such proportion as is appropriate to
reflect the relative fault of the Indemnifying Party on the one hand and of the
Indemnified Party on the other in connection with the violation(s) that resulted
in such loss, claim, damage or liability, as well as any other relevant
equitable considerations. The relative fault of the Indemnifying Party and of
the Indemnified Party shall be determined by a court of law by reference to,
among other things, whether the untrue (or alleged untrue) statement of a
material fact or the omission (or alleged omission) to state a material fact
relates to information supplied by the Indemnifying Party or by the Indemnified
Party and the parties' relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission; provided, that in
no event shall any

                                       11

<PAGE>   12
contribution by a Holder hereunder exceed the net proceeds from the offering
received by such Holder.

                      (e) The obligations of the Company and Holders under this
Section 1.7 shall survive completion of any offering of Registrable Securities
in a registration statement and the termination of this agreement. No
Indemnifying Party, in the defense of any such claim or litigation, shall,
except with the consent of each Indemnified Party, consent to entry of any
judgment or enter into any settlement which does not include as an unconditional
term thereof the giving by the claimant or plaintiff to such Indemnified Party
of a release from all liability in respect to such claim or litigation.

                      (f) The indemnification provided for in this Section 1.7
shall be superseded by indemnification provided for in an underwriting agreement
entered into by the Company and an underwriter of Registrable Securities with
respect to which a registration has been effected pursuant to this Rights
Agreement.

               1.8 Information by Holder. Any Holder or Holders of Registrable
Securities included in any registration shall promptly furnish to the Company
such information regarding such Holder or Holders and the distribution proposed
by such Holder or Holders as the Company may request in writing and as shall be
required in connection with any registration, qualification or compliance
referred to herein.

               1.9 Rule 144 Reporting. With a view to making available to
Holders the benefits of certain rules and regulations of the SEC which may
permit the sale of the Registrable Securities to the public without
registration, the Company agrees at all times after the effective date of the
first registration filed by the Company for the IPO to:

                      (a) make and keep public information available, as those
terms are understood and defined in SEC Rule 144;

                      (b) file with the SEC in a timely manner all reports and
other documents required of the Company under the Securities Act and the
Exchange Act; and

                      (c) so long as a Holder owns any Registrable Securities,
to furnish to such Holder forthwith upon written request a written statement by
the Company as to its compliance with the reporting requirements of said Rule
144 (at any time after ninety (90) days after the effective date of the first
registration statement filed by the Company for the IPO) and of the Securities
Act and the Exchange Act (at any time after it has become subject to such
reporting requirements), a copy of the most recent annual or quarterly reports
of the Company, and such other reports and documents so filed by the Company as
the Holder may reasonably request in availing itself of any rule or regulation
of the SEC allowing such Holder to sell any such securities without
registration.

               1.10 Transfer of Registration Rights. Holders' rights to cause
the Company to register their securities and keep information available, granted
to them by the Company under subsections 1.2, 1.3, 1.4 and 1.9, may be assigned
(but only with all related obligations) to a

                                       12

<PAGE>   13
transferee or assignee of at least one hundred thousand (100,000) shares (as
adjusted for stock splits, stock dividends, recapitalization and like events) of
a Holder's Registrable Securities not sold to the public; provided, however,
that the Company is given written notice by such Holder at the time of or within
a reasonable time after said transfer, stating the name and address of said
transferee or assignee and identifying the securities with respect to which such
registration rights are being assigned. The Company may prohibit the transfer of
any Holders' rights under this subsection 1.10 to any proposed transferee or
assignee who the Company reasonably believes is a competitor of the Company.
Notwithstanding anything else in this subsection 1.10, any Holder may transfer
rights to a transferee of fewer than one hundred thousand (100,000) shares (as
adjusted for stock splits, stock dividends, recapitalizations and like events)
of a Holder's Registrable Securities if such transferee is an officer, director,
partner (including the principals of any general partner) or shareholder of a
Holder or any person or entity that directly or indirectly through one or more
intermediaries controls or is controlled by or is under common control with such
Holder.

               1.11 Subsequent Grant of Registration Rights. The Company shall
not grant rights to have securities other than the Registrable Securities
registered under the Security Act that are pari passu or superior to the
registration rights granted herein without the written consent of the Holders of
a majority of the Registrable Securities.

               1.12 Market "Stand-Off" Agreement. Each Holder hereby agrees
that, for so long as such Holder holds Registrable Securities, during the period
of duration (not to exceed one hundred eighty (180) days) after the Company's
IPO as specified by the Company and an underwriter of common stock or other
securities of the Company following the effective date of a registration
statement of the Company filed under the Securities Act, it shall not, to the
extent requested by the Company and such underwriter, directly or indirectly
sell, offer to sell, contract to sell (including, without limitation, any short
sale), grant any option to purchase, pledge or otherwise transfer or dispose of
(other than to donees who agree to be similarly bound) any securities of the
Company held by it at any time during such period except common stock included
in such registration; provided, however, that such agreement shall not be
required unless all officers and directors and holders of 5% or more of the
outstanding voting securities of the Company enter into similar agreements. Each
Holder further agrees to enter into any agreement reasonably required by the
underwriters to implement the foregoing.

               In order to enforce the foregoing covenant, the Company may
impose stop-transfer instructions with respect to the Registrable Securities of
each Holder (and the shares of securities of every other person subject to the
foregoing restriction) until the end of such period.

               1.13 Termination of Registration Rights. The obligations of the
Company pursuant to this Section 1 shall terminate (i) as to all Holders on the
fifth anniversary of the closing of the IPO and (ii) as to any Holder, at such
time after the Company's IPO as (a) such Holder is able to sell all such
Registrable Securities held by such Holder within a single three month period
under Rule 144 or such Holder is able to sell all Registrable Securities held by
it pursuant to Rule 144(k) promulgated under the Securities Act and (b) the
Common Stock of the Company is then listed on the New York or American Stock
Exchange or is quoted on The Nasdaq Stock Market, or (iii) once all Registrable
Securities are registered.

                                       13

<PAGE>   14
        2. Holders' Right of First Offer.

               2.1 Right of First Offer. If, at any time prior to the
termination of this right of first offer pursuant to subsection 2.6, the Company
should desire to issue in a transaction not registered under the Securities Act
in reliance upon a claimed exemption thereunder, any New Securities (as defined
in Section 2.5 below), it shall give each Holder ("Rights Holder") the right to
purchase such Holder's pro rata share (or any part thereof) of all of such
privately offered New Securities on the same terms as the Company is willing to
sell such New Securities to any other person so that each Holder will be able to
maintain their initial percentage ownership of Common Stock. Each Holder's pro
rata share of the New Securities shall be equal to that percentage of the
outstanding Common Stock then held by such Rights Holder including (a)
outstanding shares of Common Stock, and (b) shares of Common Stock issued or
issuable upon exercise and/or conversion of any then outstanding Preferred
Stock.

               2.2 Notice. Prior to any sale or issuance by the Company of any
New Securities, the Company shall notify each Holder in writing of its intention
to sell and issue such securities, setting forth the terms under which it
proposes to make such sale. Within twenty (20) days after receipt of such
notice, each Rights Holder shall notify the Company in writing whether such
Rights Holder desires to exercise the option to purchase such Rights Holder's
pro rata share (or any part thereof) of the New Securities so offered.

               2.3 Issuance of New Securities. After termination of the twenty
(20) day period specified in subsection 2.2 above, the Company may, during a
period of ninety (90) days following the end of such twenty (20) day period,
sell and issue such New Securities as to which (a) the Rights Holders have no
right under this Section 2 to purchase, and (b) the Rights Holders do not
indicate a desire to purchase, to another person upon the same terms and
conditions as those set forth in the notice to the Rights Holders. In the event
the Company has not sold the New Securities, or has not entered into an
agreement to sell the New Securities, within said ninety (90) day period, the
Company shall not thereafter issue or sell any New Securities without first
offering such securities to the Rights Holders in the manner provided above.

               2.4 Payment. If a Rights Holder gives the Company written notice
that such Rights Holder desires to purchase any of the New Securities offered by
the Company, payment for the New Securities shall be by check, or wire transfer,
against delivery of the New Securities at the executive offices of the Company
within ten (10) days after giving the Company such notice, or, if later, the
closing date for the sale of such New Securities. The Company shall take all
such actions as may be required by any regulatory authority in connection with
the exercise by a Rights Holder of the right to purchase New Securities as set
forth in this Section 2.

               2.5 New Securities. For purposes of this Section 2, the term "New
Securities" shall mean shares of Common Stock, Preferred Stock or any other
class of capital stock of the Company, whether or not now authorized, securities
of any type that are convertible into shares of such capital stock, and options,
warrants or rights to acquire shares of such capital stock. Notwithstanding the
foregoing, the term "New Securities" will not include securities issued or
issuable (a) to employees, directors or officers of, or consultants to, the
Company pursuant to

                                       14

<PAGE>   15
stock grant, stock purchase and/or stock option plans or any other stock
incentive program, agreement or arrangement approved by the Board of Directors,
(b) to the law firm of Kirkpatrick & Lockhart LLP or its designee(s) pursuant to
the exercise of stock options to purchase up to 123,000 shares of the Company's
Common Stock outstanding as of the date hereof, (c) upon conversion of
convertible promissory notes outstanding as of the date hereof, (d) pursuant to
the acquisition by the Company of all or substantially all of the assets or
shares of another company or entity whether through a merger, exchange,
reorganization or the like, (e) to financial institutions or lessors in
connection with commercial credit arrangements or equipment financing or leasing
arrangements; (f) upon conversion of the Preferred Stock of the Company, (g)
pursuant to authorized but unissued Preferred Stock, provided that such
purchasers become parties to and bound by this Agreement, (g) in connection with
any stock split, stock dividend, recapitalization or similar event or (i) issued
in connection with the IPO; provided that, for the purposes of clauses (d) and
(e) of this Section 2.5, the entity or other person to whom the securities are
issued or issuable is not an Affiliate (as hereinafter defined) of any director,
officers or other natural person who is an Affiliate of the Company (a "Control
Person") other than in such Control Person's capacity as an officer, director or
shareholder of the Company and such Control Person does not have a material
interest in such entity other than as an officer, director or shareholder of the
Company and such issuances are made in a bona fide arm's length transaction as
determined by the Board of Directors of the Company. For purposes of this
Section 2.5, an "Affiliate" means any person or entity controlling, controlled
by or under common control with the Company.

               2.6 Termination of Right of First Offer. The right of first offer
contained in this Section 2 shall terminate upon the earlier to occur of (a) the
conversion of all of the outstanding Preferred Stock into Common Stock, (b) the
closing of the IPO or (c) the closing of (i) a merger or consolidation of the
Company with or into any other corporation in which the Company's shareholders
shall own less than fifty percent (50%) of the voting securities of the
surviving corporation or (ii) a sale, transfer, or disposition of all or
substantially all of the assets of the Company, but only if the Company's
shareholders receive cash and/or publicly traded securities as consideration in
such merger, consolidation or sale, transfer or disposition of assets.

               2.7 Assignment of Right. A Rights Holder's right to purchase any
New Securities pursuant to this Section 2 may, in connection with transfer of at
least 100,000 shares of Preferred Stock, be assigned by a Rights Holder to an
affiliate of a Rights Holder. For the purposes of this Section 2, an "affiliate"
shall mean any officer, director, partner (including the principals of any
general partner) or shareholder of a Rights Holder or any person or entity that
directly or indirectly through one or more intermediaries controls or is
controlled by or is under common control with such Rights Holder.

               2.8 Aggregation. For purposes of this Section 2, all shares held
or acquired by affiliated entities or persons shall be aggregated together for
the purpose of determining a Rights Holder's pro rata share and such pro rata
share may be allocated among the affiliated entities in any manner such
affiliated entities may determine.

                                       15

<PAGE>   16
        3. Information Rights.

               3.1 Annual Financial Information. As soon as practicable after
the end of each fiscal year, and in any event within ninety (90) days
thereafter, the Company will furnish to each Holder of Preferred Stock, audited
financial statements, including consolidated balance sheets of the Company and
its subsidiaries, if any, as of the end of such fiscal year and consolidated
statements of income and surplus and consolidated statements of changes in
financial position of the Company and its subsidiaries, if any, for such year,
prepared in accordance with generally accepted accounting principles and setting
forth in each case in comparative form the figures for the previous fiscal year.

               3.2 Quarterly Financial Information. As soon as available and in
any event within forty-five (45) days after the first three quarterly accounting
periods, the Company will provide to each Holder of Preferred Stock, unaudited
quarterly financial statements, including consolidated balance sheets of the
Company and its subsidiaries, if any, as of the end of such quarter and
consolidated statements of income and surplus and consolidated statements of
changes in financial position of the Company and its subsidiaries, if any, for
such quarter, prepared in accordance with generally accepted accounting
principles and setting forth in each case in comparative form the figures for
the previous fiscal quarter.

               3.3 Monthly Financial Information. As soon as available and in
any event within forty-five (45) days after the end of each month, the Company
will provide to each Holder of 100,000 or more shares of Preferred Stock, the
Company's unaudited income statement, statement of cash flows and a balance
sheet for and as of the end of such month, together with a comparison of such
statements to the Company's annual operating plan then in effect and approved by
its Board of Directors.

               3.4 Annual Budget. As soon as available and in any event within
forty-five (45) days prior to the end of the Company's fiscal year, the Company
will provide to each Holder of 100,000 or more shares of Preferred Stock an
annual budget and operating plan of the Company for the next fiscal year,
including (but not limited to) a cash flow projection and operating budget
(including assumptions with respect to revenues, new customers, DSL lines
provisioned and sold, operating costs, and capital expenditures), calculated
monthly, as contained in its annual operating plan approved by the Company's
Board of Directors.

               3.5 Confidentiality of Information. Each Holder agrees that any
information obtained by it pursuant to subsections 3.1, 3.2, 3.3 and 3.4 is
confidential and for its use only in connection with evaluating its investment
in the Company, and further agrees that it will not disseminate such information
to any person other than its officers, directors, shareholders, partners,
general partners, accountants, investment advisors, investment managers or
attorneys and that such dissemination shall be only for purposes of evaluating
its investment. Each Holder's obligations under this subsection 3.5 shall not
apply to any information which:

                      (a) was in the public domain at the time it was
communicated to the Holder by the Company;

                                       16

<PAGE>   17
                      (b) entered the public domain subsequent to the time it
was communicated to the Holder through no fault of the Holder;

                      (c) was in the Holder's possession free of any obligation
of confidence at the time it was communicated to the Holder by the Company;

                      (d) was rightfully communicated to the Holder by a third
party free of any obligation of confidence subsequent to the time it was
communicated to the Holder by the Company; or

                      (e) was disclosed by the Holder in response to a valid
order by a court or other governmental body, was otherwise required by law, or
was necessary to establish the rights of either party under this Rights
Agreement.

               3.6 Inspection. The Company shall permit Holders of Preferred
Stock to visit and inspect the Company's properties, to examine its books of
account and records and to discuss the Company's affairs, finances and accounts
with its officers during business hours, as may be requested in writing by the
Holder; provided, however, that the Company shall not be obligated pursuant to
this Section 3.6 to provide access to any information which the Company
reasonably considers to be a trade secret or similar confidential information.

               3.7 Termination of Covenants. The covenants set forth in
subsections 3.1 through 3.6 shall terminate and be of no further force and
effect upon the earlier to occur of (a) the closing of the IPO or (b) upon any
merger or consolidation of the Company with any other corporation in which the
shareholders of the Company immediately prior to such transaction shall own less
than fifty percent (50%) of the voting securities of the surviving corporation,
provided that the Company's shareholders receive cash and/or publicly traded
securities as consideration in such merger or consolidation.

        4. Additional Agreements.

               4.1 Expenses of Board Members. The Company shall promptly
reimburse in full each non-employee member of the Company's Board of Directors
(and up to one additional person accompanying such Board member) for all of his
reasonable travel and out-of-pocket expenses incurred in attending each meeting
of the Board of Directors of the Company.

               4.2 Use of Proceeds. The proceeds of this offering shall be used
by the Company for capital expenditures, working capital and operating
expenditures in accordance with a board-approved budget.

               4.3 Board Meetings. Regular meetings of the Board of Directors
shall be scheduled bi-monthly unless otherwise agreed to by the Board of
Directors.

                                       17

<PAGE>   18
               4.4 Purchase of Additional Preferred Stock.

                      (a) If on or before December 31, 2000, the Company has
purchased from the Series C Investor $7,500,000 worth of products, the Company
may require the Series C Investor to purchase up to an aggregate of an
additional $7,500,000 of the Company's preferred stock on the same terms and
conditions as the preferred stock issued to persons immediately preceding the
Series C Investor's receipt of the Put Notice (as defined below); provided,
however, that if the Company has executed a term sheet for the investment in
another series of preferred stock at the time the Series C Investor receives the
Put Notice, then the Series C Investor, if the Company so chooses, shall be
required to invest on terms consistent with such new term sheet for the
preferred stock (the "Put Right").

                      (b) If the Company desires to exercise the Put Right under
Section 4.4(a), then, the Company shall deliver to the Series C Investor on or
before December 31, 2000, written notice (a "Put Notice") stating the Company's
exercise of its Put Right hereunder, the number of shares of preferred stock the
Company desires to sell to the Series C Investor and the purchase price per
share calculated as set forth above.

                      (c) The Series C Investor and the Company shall, within
sixty (60) days following delivery of the Put Notice, enter into a Preferred
Stock Purchase Agreement to purchase the number of shares of the Company's
preferred stock specified in the Put Notice. The Company shall grant the Series
C Investor substantially the same rights with respect to the Preferred Stock
under the Second Restated Investors Rights Agreement and the Second Restated
Shareholders Agreement as the Series C Investor enjoys with respect to the
Series C Preferred Stock.

                      (d) Upon the issuance and sale of the additional shares of
preferred stock by the Company as set forth in this subsection 4.4, the
Investors hereby agree to waive their Right of First Offer as described in
Section 2 of this Rights Agreement.

                      (e) The Company's right to require the Series C Investor
to purchase additional shares of preferred stock under this subsection 4.4 shall
terminate on the earlier of December 31, 2000 or the effective date of the
Company's IPO.

               4.5 Repurchase Right.

                      (a) At any time after December 31, 2000, upon providing
the Repurchase Notice (as described below), the Company shall have an
irrevocable, exclusive option (the "Repurchase Option") for a period of 90 days
from such date to repurchase from Investor shares of Series C Preferred or the
Conversion Shares as determined by dividing the product of $7,500,000 less the
dollar amount of products actually purchased by the Company on or before
December 31, 2000 by $2.7162 (the "Repurchase Price") up to a maximum of
$3,500,000 worth of Series C Preferred or the Conversion Shares.

                      (b) The Repurchase Option shall be exercised by the
Company by written notice to the Series C Investor and, at the Company's option,
(i) by delivery to the Series

                                       18

<PAGE>   19
C Investor with such notice of a check in the amount of the purchase price for
the Shares being repurchased, (ii) by cancellation by the Company of an amount
of the Series C Investor indebtedness to the Company equal to the purchase price
for the Shares being repurchased, or (iii) by a combination of (i) and (ii) so
that the combined payment and cancellation of indebtedness equals the aggregate
Repurchase Price. Upon delivery of such notice and the payment of the purchase
price in any of the ways described above, the Company shall become the legal and
beneficial owner of the Shares being repurchased and all rights and interests
therein or relating thereto, and the Company shall have the right to retain and
transfer to its own name the number of Shares being repurchased by the Company.

                      (c) Whenever the Company shall have the right to
repurchase Shares hereunder, the Company may designate and assign one or more
employees, officers, directors, or shareholders of the Company or other persons
or organizations to exercise all or a part of the Company's purchase rights
under this Agreement and purchase all or a part of such Shares. If the fair
market value of the Shares to be repurchased on the date of such designation or
assignment (the "Repurchase FMV") exceeds the aggregate Repurchase Price of such
Shares, then each such designee or assignee shall pay the Company cash equal to
the difference between the Repurchase FMV and the aggregate Repurchase Price of
such Shares.

        5. General.

               5.1 Waivers and Amendments. With the written consent of the
record or beneficial holders of sixty percent (60%) of the Registrable
Securities, the obligations of the Company and the rights of the Preferred Stock
under this agreement may be waived (either generally or in a particular
instance, either retroactively or prospectively, and either for a specified
period of time or indefinitely). With the written consent of the record or
beneficial holders of sixty percent (60%) of the Registrable Securities, the
Company, when authorized by resolution of its Board of Directors, may enter into
a supplementary agreement for the purpose of adding any provisions to or
changing in any manner or eliminating any of the provisions of this Rights
Agreement; provided, however, that no such modification or amendment shall
reduce the aforesaid majority of Registrable Securities consent requirement
without the consent of all of the Holders of the Registrable Securities and
provided further, however, that if such supplementary agreement increases the
rights of the Preferred Stock, the consent of the Company shall mean the
approval of the Company's Board of Directors including Cliff Young. Upon the
effectuation of each such waiver, consent, agreement of amendment or
modification, the Company shall promptly give written notice thereof to the
record holders of the Registrable Securities who have not previously consented
thereto in writing. Notwithstanding anything else set forth above, the written
consent or approval of the record or beneficial holders of sixty percent (60%)
of the shares of a particular series of Preferred Stock will be required if and
to the extent that any waiver, amendment, modification or supplementary
agreement to this Agreement would negatively affect the rights of the Holders of
such series under this Agreement.

               5.2 Governing Law. This Rights Agreement shall be governed in all
respects by the laws of the State of California as such laws are applied to
agreements between California residents entered into and to be performed
entirely within California.

                                       19

<PAGE>   20
               5.3 Successors and Assigns. Except as otherwise expressly
provided herein, the provisions hereof shall inure to the benefit of, and be
binding upon, the successors, assigns, heirs, executors and administrators of
the parties hereto.

               5.4 Entire Rights Agreement. Except as set forth below, this
Rights Agreement and the other documents delivered pursuant hereto constitute
the full and entire understanding and agreement between the parties with regard
to the subjects hereof and thereof, and this Rights Agreement shall supersede
and cancel all prior agreements between the parties hereto with regard to the
subject matter hereof, including the Second Restated Rights Agreement.

               5.5 Notices, etc. All notices and other communications required
or permitted hereunder shall be in writing and shall be sent via facsimile,
overnight courier service or mailed by certified mail, postage prepaid, return
receipt requested, addressed or sent (i) if to a Purchaser, at the address or
facsimile number of the Purchaser set forth in the Company's records, or at such
other address or number as the Purchaser shall have furnished to the Company in
writing, or (ii) if to the Company, at 4499 Glencoe Avenue, Marina del Rey,
California, facsimile: (310) 887-6223, or at such other address or number as the
Company shall have furnished to the Purchasers in writing, and shall be
effective (i) upon delivery if sent by facsimile (with a confirming receipt);
(ii) one day after delivery to an overnight courier service; or (iii) three (3)
days after deposit with the United States Post Office if mailed postage prepaid
by regular mail or airmail.

               5.6 Severability. In case any provision of this Rights Agreement
shall be invalid, illegal, or unenforceable, the validity, legality and
enforceability of the remaining provisions of this Rights Agreement or any
provision of the other Agreements shall not in any way be affected or impaired
thereby.

               5.7 Titles and Subtitles. The titles of the sections and
subsections of this Rights Agreement are for convenience of reference only and
are not to be considered in construing this Rights Agreement.

               5.8 Counterparts. This Rights Agreement may be executed in any
number of counterparts, each of which shall be an original, but all of which
together shall constitute one instrument.

               5.9 Aggregation of Stock. All shares held or acquired by
affiliated entities or persons shall be aggregated together for the purpose of
determining the availability of any rights under this Agreement.

               [Remainder of this page intentionally left blank.]

                                       20

<PAGE>   21
        IN WITNESS WHEREOF, the parties hereby have executed this Third Restated
Investors Rights Agreement on the date first above written.

                                    "COMPANY"

                                    ICNT, INC.,
                                    a California corporation

                                    By   /s/ John W. Combs
                                      ---------------------------------------
                                         John W. Combs
                                         Chief Executive Officer

                                    By   /s/ Clifford H. Young
                                      ---------------------------------------
                                         Clifford H. Young
                                         President

                                       21

<PAGE>   22
            SERIES A, B AND D PURCHASERS' COUNTERPART SIGNATURE PAGE

                                   ICNT, INC.
                    THIRD RESTATED INVESTORS RIGHTS AGREEMENT
                                 APRIL 13, 2000

Crosspoint Venture Partners 1999

By:   /s/ Robert Hoff
     --------------------------------------
      Robert Hoff, General Partner

Spectrum Equity Investors III, L.P.

   By: Spectrum Equity Associates III, L.P.
   Its General Partner

By:   /s/ Brion Applegate
     --------------------------------------
      Brion Applegate, General Partner

SEI II Entrepreneurs' Fund, L.P.

   By:  SEI III Entrepreneurs' LLC
   Its General Partner

By:   /s/ Brion Applegate
     --------------------------------------
      Brion Applegate, Managing Member

Spectrum III Investment Managers' Fund, L.P.

By:   /s/ Brion Applegate
     --------------------------------------
      Brion Applegate, General Partner

                                       22

<PAGE>   23
              SERIES A AND B PURCHASERS' COUNTERPART SIGNATURE PAGE

                                   ICNT, INC.
                    THIRD RESTATED INVESTORS RIGHTS AGREEMENT
                                 APRIL 13, 2000

/s/ David Chung
-------------------------------------
David Chung

/s/ Noel Rahn
--------------------------------------
Noel Rahn

/s/ Patrick Healy
--------------------------------------
Patrick Healy

                                       23

<PAGE>   24
                 SERIES C PURCHASER'S COUNTERPART SIGNATURE PAGE

                                   ICNT, INC.
                    THIRD RESTATED INVESTORS RIGHTS AGREEMENT
                                 APRIL 13, 2000

Cabletron Systems, Inc.

By:  /s/ DAN HARDING
     --------------------------------------------
    Name: Dan Harding

    Title: Vice - President, Business Development

                                       24

<PAGE>   25
                 SERIES D PURCHASER'S COUNTERPART SIGNATURE PAGE

                                   ICNT, INC.
                    THIRD RESTATED INVESTORS RIGHTS AGREEMENT
                                 APRIL 13, 2000

Efficient Networks, Inc.

By:  /s/ Kenneth M. Siegel
     --------------------------------------

Title:  Vice President
        -----------------------------------

Polycom

By:  /s/ Michael R. Kouhry
     --------------------------------------

Title:  Chief Financial Officer
        -----------------------------------

Winstar Communications

By:  /s/ Kenneth J. Zinghini
     --------------------------------------

Title:  Senior Vice President
        -----------------------------------

<PAGE>   26
                 SERIES D PURCHASER'S COUNTERPART SIGNATURE PAGE

                                   ICNT, INC.
                    THIRD RESTATED INVESTORS RIGHTS AGREEMENT
                                 APRIL 13, 2000

Morgan Stanley Dean Witter Equity Funding, Inc.

By:  /s/ THOMAS CLAYTON
     --------------------------------------

Title:  Vice President
        -----------------------------------

Big Basin Partners, L.P.

By:  /s/ FRANK J. MARSHALL
     --------------------------------------
        Frank J. Marshall, General Partner

/s/ MATTHEW MOCHARY
-------------------------------
Matthew Mochary

/s/ BERNARD PUCKETT
-------------------------------
Bernard Puckett

BS-METALS B2B Acquisition Corp.

By:  /s/ RICHARD L. METRICK
     --------------------------------------
           Title: Chief Executive Officer
                   -------------------------------

                                       26

<PAGE>   27
                 SERIES D PURCHASER'S COUNTERPART SIGNATURE PAGE

                                   ICNT, INC.
                    THIRD RESTATED INVESTORS RIGHTS AGREEMENT
                                 APRIL 13, 2000

idealab! Capital Partners II-A, LP
By its General Partner,
idealab! Capital Management II, LLC

By:  /s/ William Elkus
     --------------------------------------
     William Elkus, Managing Member

idealab! Capital Partners II-B, LP
By its General Partner,
        idealab! Capital Management II, LLC

By:  /s/ William Elkus
     --------------------------------------
     William Elkus, Managing Member

idealab! Capital Principals Fund, LP
        By its General Partner,
        idealab! Capital Management II, LLC

By:  /s/ William Elkus
     --------------------------------------
     William Elkus, Managing Member

                                       27

<PAGE>   28
                                    EXHIBIT A

                                LIST OF INVESTORS

Crosspoint Venture Partners 1999

Spectrum Equity Investors III, L.P.

SEI II Entrepreneurs' Fund, L.P.

Spectrum III Investment Managers' Fund, L.P.

David Chung

Noel Rahn

Patrick Healy

Cabletron Systems, Inc.

Winstar Communications

Efficient Networks, Inc.

idealab! Capital Partners II-A, LP

idealab! Capital Partners II-B, LP

idealab! Capital Principals Fund, LP

Polycom

Morgan Stanley Dean Witter Equity Funding

Big Basin Partners, LP

BS-METALS B2B Acquisition Corp.

Bernard Puckett

Matthew Mochary

                                       28<PAGE>   1
                                                                   EXHIBIT 10.10

                                   ICNT, INC.
                      THIRD RESTATED SHAREHOLDERS AGREEMENT

      THIS THIRD RESTATED SHAREHOLDERS AGREEMENT (this "Agreement") is made as
of the 13 day of April, 2000 by and among Cliff Young (the "Founder"), ICNT,
Inc., a California corporation (the "Company"), the shareholders of the
Company's Series A Preferred Stock (the "Series A Holders"), the shareholders of
the Series B Preferred Stock (the "Series B Holders"), Cabletron Systems, Inc.
(the "Series C Holder"), and the shareholders of the Series D Preferred Stock
(the "Series D Holders"). This Agreement supersedes and restates in its entirety
that certain Second Restated Shareholders Agreement (the "Second Restated
Shareholders Agreement") made and entered into as of March 28, 2000 by and among
the Company and the Series A Holders, the Series B Holder, and the Series C
Holder.

                                    RECITALS:

      A.    The Founder is presently the beneficial owner of Seven Million Seven
Hundred Eighty-Six Thousand Six Hundred Twenty-Five (7,786,625) shares of the
outstanding common stock of the Company. All Common Stock and any other shares
of capital stock of the Company subsequently owned by the Founder are herein
collectively referred to as the "Founder Shares."

      B.    Pursuant to the Series A Stock Purchase Agreement, made and entered
into as of July 16, 1999, the Company has previously sold to the Series A
Holders thirteen million three hundred thirty-three thousand three hundred
thirty-four (13,333,334) shares of the Company's Series A Preferred Stock (the
"Series A Preferred"). In connection with such sales, the Company granted the
Series A Holders certain rights, as set forth in the First Restated Shareholders
Agreement.

      C.    Pursuant to the Series B Stock Purchase Agreement, made and entered
into as of December 21, 1999, the Company has previously sold to the Series B
Holders Ten Million One Hundred Fifty Thousand Four Hundred Ninety (10,150,490)
shares of the Company's Series B Preferred Stock (the "Series B Preferred"). In
connection with such sales, the Company granted the Series B Holders certain
rights, as set forth in the First Restated Shareholders Agreement.

      D.    Pursuant to the Series C Stock Purchase Agreement, made and entered
into as of March 28, 2000, the Company has previously sold to the Series C
Holder Two Million Seven Hundred Sixty One Thousand Two Hundred Ten (2,761,210)
shares of the Company's Series C Preferred Stock (the "Series C Preferred"). In
connection with such sale, the Company granted the Series C Holder certain
rights, as set forth in the Second Restated Shareholders Agreement. Pursuant to
that certain Second Restated Investors Rights Agreement, dated March 28, 2000,
between the Company and the Series C Holder, on certain conditions, the Company
has the right to require the Series C Holder to purchase up to $7,500,000 of the
Company's preferred stock (the "Put Right").

      E.    The Series D Holders have purchased from the Company shares of its
Series D Preferred Stock (the "Series D Preferred") pursuant to that certain
Series D Preferred Stock Purchase Agreement, dated of even date herewith, by and
among the Company and the Series D Holder (the "Series D Stock Agreement").

                                      -1-
<PAGE>   2

      F.    This Agreement amends the Second Restated Shareholders Agreement to
afford the Series D Holders the same rights granted to the Series A Holders, the
Series B Holders and the Series C Holder. By their execution of this Agreement,
each of the Series A Holders, the Series B Holders and the Series C Holder agree
to the amendment of the Second Restated Shareholders Agreement as provided
herein and agree to be bound by this Agreement.

      G.    The Series A Holders, the Series B Holders, the Series C Holder and
the Series D Holders will hereinafter be referred to collectively as the
"Holders." The Series A Preferred, the Series B Preferred, the Series C
Preferred and the Series D Preferred will hereinafter be referred to
collectively as the "Preferred Stock."

      H.    The obligations of each of the Series D Holders to purchase shares
of Series D Preferred is conditioned upon, among other things, the execution and
delivery by each of the Company, the Founder and the Holders of this Agreement.

                                    AGREEMENT

      NOW, THEREFORE, in consideration for and of the foregoing and the mutual
promises, covenants and conditions set forth herein and other good and valuable
condition the receipt and sufficiency of which is hereby acknowledged, the
parties hereby agree as follows:

      1.    Holders' Right of First Refusal.

            1.1   In the event the Founder desires to accept a bona fide third
party offer for any or all of Founder Shares (the shares subject to such offer
to be hereinafter called, solely for the purposes of this Section 1 the "Target
Shares"), the Founder shall promptly deliver to the Holders and the Company
written notice (the "Disposition Notice") stating: (i) the Founder's bona fide
intention to sell or otherwise transfer the Target Shares; (ii) the name of each
proposed purchaser or other transferee (each a "Proposed Transferee"); (iii) the
number of Target Shares to be transferred to each Proposed Transferee; and (iv)
the bona fide cash price or other consideration for which the Founder proposes
to transfer the Target Shares (the "Offered Price"), and the Founder shall offer
the Target Shares at the Offered Price to the Company or its assignee(s).

            1.2   Subject to the Company's right of first refusal with respect
to the Founder Shares as set forth in the Founder's Stock Agreement, dated July
16, 1999, between the Company and the Founder, each Holder shall, for a period
of thirty (30) days following delivery of the Disposition Notice as determined
in accordance with Section 7.2 below, (the "Exercise Period"), have the right to
purchase that number of the Target Shares specified in the Disposition Notice as
shall be equal to the aggregate number of such shares multiplied by a fraction,
the numerator of which is the aggregate number of shares of Preferred Stock (on
an as-converted into Common Stock basis) then owned by such Holder and the
denominator of which is the aggregate number of shares of Preferred Stock
outstanding and held by all the Holders who exercise their right to purchase
shares pursuant to this Section 1 ("Electing Holders") (on an as-converted into
Common Stock basis), upon substantially the same terms and conditions specified
therein. Such right shall be exercisable by written notice (the "Exercise
Notice") delivered to the Founder prior to the expiration of the Exercise
Period. If such right is exercised with respect to all or any part of the Target
Shares specified in the

                                      -2-
<PAGE>   3

Disposition Notice, then the Founder and the Electing Holders shall effect the
purchase of all or any part of the Target Shares, including payment of the
purchase price therefor, not more than ten (10) business days after the Exercise
Period. At such time the Founder shall deliver to the Electing Holders the
certificates representing the Target Shares to be purchased, each certificate to
be properly endorsed for transfer.

            Should the purchase price specified in the Disposition Notice be
payable in property other than cash or evidences of indebtedness, the Electing
Holders shall have the right to pay the purchase price in the form of cash equal
in amount to the value of such property. If the Founder and the Electing Holders
cannot agree on such cash value within ten (10) days after the Exercise Period,
the valuation shall be made by an appraiser of recognized standing selected by
the Founder and a majority in interest of the Electing Holders, or, if they
cannot agree on an appraiser within twenty (20) days after the Exercise Period,
each shall select an appraiser of recognized standing, and the two appraisers
shall designate a third appraiser of recognized standing, whose appraisal shall
be determinative of such value. The cost of such appraisal shall be shared
equally by the Founder and the Electing Holders. The closing shall then be held
on the date ten (10) business days after such cash valuation shall have been
made.

            1.3   In the event the Exercise Notice is not given to the Founder
within thirty (30) days following the delivery of the Disposition Notice, the
Founder shall have a period of thirty (30) days thereafter, in which to sell or
otherwise dispose of the Target Shares (and any shares of the Holders pursuant
to Section 2 below) upon terms and conditions (including the purchase price) no
more favorable to the third-party purchaser than those specified in the
Disposition Notice. The third-party purchaser shall acquire the Target Shares
free and clear of all the terms and provisions of this Right of First Refusal.
In the event the Founder does not sell or otherwise dispose of the Target Shares
within the specified thirty (30) day period, the Right of First Refusal shall
continue to be applicable to any subsequent disposition of the Target Shares by
the holder of such Target Shares until such right lapses in accordance with
Section 4.4.

            1.4   Subject to Section 2 below, the Founder shall have the right
to effect the sale of the Target Shares not purchased by the Electing Holders to
the third party purchaser pursuant to Section 1.3.

      2.    Co-Sale Right.

            2.1   Should the Founder offer to sell, or receive one or more bona
fide offers (individually, a "Purchase Offer") to purchase, any of the Founder
Shares, and the Holders do not exercise their full right of first refusal as set
forth in Section 1 hereof or the Founder is otherwise entitled to sell the
Founder Shares owned by such Founder pursuant to Section 1.3 or 1.4, then the
Founder shall promptly notify each Holder and the Company of the failure of the
Holders to exercise their full right of first refusal, and of the terms and
conditions of such Purchase Offer ("Co-Sale Notice"). Should a Holder receive
one or more Purchase Offers with respect to any of his, her or its shares of
Series A Preferred, Series B Preferred, Series C Preferred or Series D
Preferred, as applicable, then the Holder shall promptly deliver to the Founder
and the Company the Co-Sale Notice.

                                      -3-
<PAGE>   4

            2.2   With respect to sales of Founder Shares by the Founder, each
Holder shall have the right, exercisable upon written notice to the Founder
within thirty (30) days after receipt of the Co-Sale Notice (the "Offer
Period"), to participate in the Founder's sale of Founder Shares pursuant to the
specified terms and conditions of such Purchase Offer as set forth in the
Co-Sale Notice. To the extent a Holder exercises such right of participation in
accordance with the terms and conditions set forth below, the number of Founder
Shares that the Founder may sell pursuant to such Purchase Offer shall be
correspondingly reduced.

                  (a)   Each Holder may sell all or any part of that number of
shares of Common Stock of the Company owned by that Holder that is not in excess
of the product obtained by multiplying (i) the aggregate number of Shares
covered by the Purchase Offer remaining after the exercise of any rights of
first refusal set forth above by (ii) a fraction, the numerator of which is the
number of shares of Common Stock at the time owned by that Holder and the
denominator of which is the total number of shares of Common Stock of the
Company outstanding, excluding any shares issuable upon exercise of any
outstanding options, warrants or other rights to acquire shares of Common Stock
or securities convertible into or exercisable or exchangeable for shares of
Common Stock of the Company. For purposes of making this computation, each
Holder shall be deemed to own the number of shares of Common Stock into which
all his, her or its Series A Preferred, Series B Preferred, Series C Preferred
and/or Series D Preferred is at the time convertible, and the number of shares
of Common Stock issuable upon conversion of all then-outstanding shares of
Preferred Stock will be deemed to be outstanding for purposes of determining the
total number of shares of Common Stock of the Company then outstanding.

                  (b)   Each Holder may effect its participation in the sale by
delivering to the Founder, within the thirty (30) day period under Section 2.2,
for transfer to the maker(s) of the Purchase Offer, one or more certificates,
properly endorsed for transfer, which shall be accompanied by a written election
to participate in the sale with respect to a specified number of shares of
Common Stock not in excess of the amount of Shares permitted to be sold under
Section 2.2(a) (the "Election Number") and shall represent:

                        (i)   the Election Number of shares of Common Stock, or

                        (ii)  that number of shares of Series A Preferred,
Series B Preferred, Series C Preferred or Series D Preferred, as applicable,
which is at such time convertible into at least the Election Number of shares of
Common Stock; provided, however, that if the maker(s) of the Purchase Offer
objects to the delivery of Series A Preferred, Series B Preferred, Series C
Preferred or Series D Preferred in lieu of Common Stock, the Holder may convert
and deliver Common Stock as provided in subparagraph (i) above. Any Holder not
delivering such certificate(s) and written election within the aforesaid thirty
(30) day time period will have waived irrevocably all rights under this
Agreement with respect to the Purchase Offer, but not with respect to any
subsequent Purchase Offer.

                  (c)   The stock certificate or certificates that the Holder
delivers to the Founder pursuant to Section 2.2 shall be transferred by the
Founder to the maker(s) of the Purchase Offer in consummation of the sale of the
Common Stock pursuant to the terms and conditions specified in the Co-Sale
Notice to the Holder, and the Founder shall promptly thereafter

                                      -4-
<PAGE>   5

remit to such Holder that portion of the sale proceeds to which such Holder is
entitled by reason of its participation in such sale.

                  (d)   The exercise or non-exercise of the rights of the
Holders hereunder to participate in one or more sales of Common Stock made by
the Founder shall not adversely affect their rights to participate in subsequent
sales of Founder Shares by the Founder pursuant to Section 2.1 hereof.

            2.3   With respect to sales of Shares by the Holders, the Founder
shall have the right, exercisable upon written notice to the selling Holder
within thirty (30) days after receipt of the Co-Sale Notice (the "Offer
Period"), to participate in the Holder's sale of Shares pursuant to the
specified terms and conditions of such Purchase Offer as set forth in the
Co-Sale Notice. To the extent the Founder exercises such right of participation
in accordance with the terms and conditions set forth below, the number of
Shares that the Holder may sell pursuant to such Purchase Offer shall be
correspondingly reduced.

                  (a)   The Founder may sell all or any part of that number of
shares of Common Stock of the Company owned by the Founder that is not in excess
of the product obtained by multiplying (i) the aggregate number of Shares
covered by the Purchase Offer by (ii) a fraction, the numerator of which is the
number of shares of Common Stock at the time owned by the Founder and the
denominator of which is the total number of shares of Common Stock of the
Company outstanding, excluding any shares issuable upon exercise of any
outstanding options, warrants or other rights to acquire shares of Common Stock
or securities convertible into or exercisable or exchangeable for shares of
Common Stock of the Company.

                  (b)   The Founder may effect his participation in the sale by
delivering to the Holder, within the thirty (30) day period under this Section
2.3, for transfer to the maker(s) of the Purchase Offer, one or more
certificates, properly endorsed for transfer, which shall be accompanied by a
written election to participate in the sale with respect to a specified number
of shares of Common Stock (the "Election Number") and shall represent at least
the Election Number of shares of Common Stock.

                  (c)   The stock certificate or certificates that the Founder
delivers to the selling Holder pursuant to this Section 2.3 shall be transferred
by the Holder to the maker(s) of the Purchase Offer in consummation of the sale
of the Common Stock pursuant to the terms and conditions specified in the
Co-Sale Notice to the Founder, and the Holder shall promptly thereafter remit to
the Founder that portion of the sale proceeds to which the Founder is entitled
by reason of its participation in such sale.

                  (d)   The exercise or non-exercise of the rights of the
Founder hereunder to participate in one or more sales of Series A Preferred,
Series B Preferred, Series C Preferred or Series D Preferred made by the Holders
shall not adversely affect their rights to participate in subsequent sales of
Preferred Stock by the Holders pursuant to this Section 2.3.

            2.4   The rights of the Holders to participate in any sale or
transfer by the Founder (a) are subordinate to any right of first refusal in
favor of the Company covering the

                                      -5-
<PAGE>   6

Founder Shares, and (b) shall pertain or apply only to shares as to which any
such right of first refusal is not exercised.

      3.    The rights of the Holders pursuant to Section 1 and 2 shall not
pertain or apply to (a) any transfer of Founder Shares to any of the mother,
father, descendants, brother(s), sister(s) or spouse of the Founder or to any
trustee or trustees for the benefit of any one or more of the foregoing
(including such mother, father, brother(s), sister(s) or spouses), (b) any bona
fide gift of Shares, (c) any pledge of up to 100,000 Founder Shares made
pursuant to a bona fide loan transaction that creates a mere security interest,
(d) any sales of the Company's Common Stock pursuant to an underwritten public
offering of shares of the Company, (e) any transfer of Founder Shares to the
Company, (f) any one-time transfer by Founder of up to 100,000 Founder Shares
(less any shares pledged pursuant to 3(c) above), or (g) any transfer or
transfers of Shares in any merger or acquisition in which shareholders of the
Company receive cash or securities of another issuer or other consideration in
exchange for their shares; provided, however, that in the case of clauses (a)
and (b) above, the transferee (the "Permitted Transferee") shall furnish the
Holders with a written agreement to be bound by and comply with all provisions
of this Agreement applicable to the Founder.

      4.    The rights of the Founder pursuant to Section 2 shall not pertain or
apply to (a) any transfer of Preferred Stock to any officer, director, partner
(including the principals of any general partner) or stockholder of a Holder or
any person or entity that directly or indirectly through one or more
intermediaries controls or is controlled by or is under common control with such
Holder, (b) any sales of the Company's Preferred Stock or Common Stock issuable
upon conversion of the Preferred Stock pursuant to an underwritten public
offering of shares of the Company, (e) any transfer of Preferred Stock to the
Company, or (c) any transfer or transfers of Preferred Stock or Common Stock in
any merger or acquisition in which shareholders of the Company receive cash or
securities of another issuer or other consideration in exchange for their
shares.

      5.    Prohibited Transfers. No Holder shall sell, transfer, assign or
otherwise hypothecate any shares of capital stock of the Company to any proposed
transferee or assignee who the Company reasonably believes is a competitor of
the Company. Any attempt to transfer shares of the Company in violation of the
foregoing sentence or of Section 1 or 2 hereof shall be void, and the Company
agrees it will not effect such a transfer nor will it treat any alleged
transferee as the holder of such shares without the written consent of the
Founder or the Holders having the right to amend this Agreement as provided
below.

      6.    Standoff Agreement. Until such time as the Company's Put Right is
exercised, the Series C Holder shall not purchase or acquire any additional
shares of capital stock of the Company, either from the Company or other
shareholders, without the prior written consent of the Founder, which consent
may be withheld in his sole discretion.

      7.    Voting Agreement Pursuant to Section 5(b) of Article III(B) of the
Company's Amended and Restated Articles of Incorporation, the holders of the
Company's Common Stock are entitled to elect two members of the Company's Board
of Directors (the "Common Members"), the holders of the Company's Series A
Preferred are entitled to elect two members of the Company's Board of Directors
(the "Series A Members"), and the holders of the Company's Common Stock and
Preferred Stock are entitled to elect one member of the Company's Board of

                                      -6-
<PAGE>   7

Directors (the "At Large Member"). In any and all elections of the Board of
Directors of the Company (whether at a meeting or by written consent in lieu of
a meeting), the Founder and each Holder, to the extent such Founder or Holder is
entitled to vote thereon, shall vote or cause to be voted all shares of Common
Stock owned by it, or over which it has voting control, and otherwise use its
respective best efforts, so as to cause to be elected as the Common Members,
John Combs and Cliff Young. In any and all elections of the Board of Directors
of the Company (whether at a meeting or by written consent in lieu of a
meeting), the Founder and each Holder, to the extent such Founder or Holder is
entitled to vote thereon, shall vote or cause to be voted all shares of Common
Stock or Preferred Stock, as applicable, owned by it, or over which it has
voting control, and otherwise use its respective best efforts, so as to cause to
be elected as the At Large Member, an industry expert who is not an employee of
the Company, selected by the holders of a majority of the Common Stock and the
Preferred Stock. In any and all elections of the Board of Directors of the
Company (whether at a meeting or by written consent in lieu of a meeting), the
Founder and each Holder, to the extent such Founder or Holder is entitled to
vote thereon, shall vote or cause to be voted all shares of Series A Preferred
owned by it, or over which it has voting control, and otherwise use its
respective best efforts, so as to cause to be elected as the Series A Members
one nominee of Crosspoint Venture Partners and one nominee of Spectrum Equity
Investors.

      8.    Legended Certificates.

            8.1   Each certificate representing shares of the Common Stock and
Preferred Stock of the Company now or hereafter owned by the (i) Founder, (ii)
any Permitted Transferee pursuant to Section 3, or (iii) the Holders shall be
endorsed with the following legend:

        "THE SALE OR TRANSFER OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE
        IS SUBJECT TO THE TERMS AND CONDITIONS OF A CERTAIN SHAREHOLDERS
        AGREEMENT. COPIES OF SUCH AGREEMENT MAY BE OBTAINED WITHOUT CHARGE UPON
        WRITTEN REQUEST TO THE SECRETARY OF THE CORPORATION."

            8.2   The Section 8.1 legend shall be removed upon termination of
this Agreement in accordance with the provisions of Section 9.1.

      9.    Miscellaneous Provisions.

            9.1   The rights of the Holders and the Founder under this Agreement
and the correlative obligations of the Founder with respect to the Holders and
the Holders with respect to the Founder shall terminate upon the occurrence of
the earliest of the following events:

                  (a)   The effective date of a registration statement under the
Securities Act of 1933, as amended (the "Act), filed in connection with the
Company's first underwritten public offering of shares of the Company in which
the Preferred Stock is converted into Common Stock; or

                  (b)   (i) a merger or consolidation of the Company with or
into any other corporation or corporations or other entity or entities or any
other corporation reorganization in which the shareholders of the Company shall
own less than fifty percent (50%) of the voting

                                      -7-
<PAGE>   8

securities of the surviving corporation or other entity, but only if the
Company's shareholders receive cash and/or publicly traded securities as
consideration in such merger or consolidation, (ii) any transaction or series of
related transactions in which in excess of 50% of the Company's voting power is
transferred, except in transactions, the primary purpose of which is to raise
additional equity capital for the Company, or (iii) a sale, lease, transfer or
other disposition (but not including a transfer or disposition by pledge or
mortgage to a bona fide lender) of all or substantially all of the assets of the
Company but only if the Company's shareholders receive cash and/or publicly
traded securities as consideration in such sale, transfer or disposition of
assets.

            9.2   All notices and other communications required or permitted
hereunder shall be in writing and shall be sent via facsimile, overnight courier
service or mailed by certified mail, postage prepaid, return receipt requested,
addressed or sent (i) if to a Holder, at the address or facsimile number of the
Holder set forth in the Company's records, or at such other address or number as
the Holder shall have furnished to the Company in writing, or (ii) if to the
Company, at 4499 Glencoe Avenue, Marina del Rey, California 90292, facsimile:
(310) 881-6223, or at such other address or number as the Company shall have
furnished to the Holders in writing, or (iii) if to the Founder, at 4499 Glencoe
Avenue, Marina del Rey, California 90292, facsimile: (310) 881-6223, or at such
other address or number as the Founder shall have furnished to the Company and
the Holders in writing and shall be effective (a) upon delivery if sent by
facsimile (with a confirming receipt); (b) one day after delivery to an
overnight courier service; or (c) three (3) days after deposit with the United
States Post Office if mailed postage prepaid by regular mail or airmail.

            9.3   This Agreement and the rights and obligations of the parties
hereunder shall inure to the benefit of, and be binding upon, their respective
successors, assigns and legal representatives.

            9.4   In the event one or more of the provisions of this Agreement
should, for any reason, be held to be invalid, illegal or unenforceable in any
respect, such invalidity, illegality or unenforceability shall not affect any
other provisions of this Agreement, and this Agreement shall be construed as if
such invalid, illegal or unenforceable provision had never been contained
herein.

            9.5   Any amendment, modification or waiver of any provision of this
Agreement shall be effective if in writing and approved by (i) the Company; (ii)
the holders of sixty percent (60%) of the shares of the Preferred Stock; and
(iii) the Founder.

            9.6   Each Holder acknowledges that by the operation of Section 9.5
hereof the holders of the number of shares of the Preferred Stock specified
therein will have the right and power to diminish or eliminate all rights of
such Holders under this Agreement.

            9.7   This Agreement shall be governed by and construed in
accordance with the laws of the State of California, without giving effect to
the conflicts of laws principles thereof.

            9.8   The Company agrees to use reasonable efforts to enforce the
term of this Agreement, to inform the Holders of any breach hereof and to assist
the Holders in the exercise of their rights and performance of their obligations
hereunder; provided, however, that nothing herein will require the Company to
initiate or join in any suit, action or proceeding.

                                      -8-
<PAGE>   9

            9.9   This Agreement may be executed in any number of counterparts,
each of which when so executed and delivered shall be deemed an original, and
all such counterparts together shall constitute one and same instrument.

            9.10  The Company, the Founder and the Holders agree that this
Agreement sets forth the sole and entire agreement among the Company, the
Founder and the Holders on the subject matter hereof.

            9.11  All shares held or acquired by affiliated entities or persons
shall be aggregated together for the purposes of Sections 1.2 and 2.2 of this
Agreement and may be allocated among affiliated entities in any manner such
affiliated entities desire.

                                      -9-
<PAGE>   10

            IN WITNESS WHEREOF, the parties hereto have executed this Third
Restated Shareholders Agreement as of the date first set forth above.

                                    "COMPANY"

                                    ICNT, INC.,
                                    a California corporation

                                    By  /s/ JOHN W. COMBS
                                      -----------------------------------------
                                          John W. Combs
                                          Chief Executive Officer

                                    By  /s/ CLIFFORD H. YOUNG
                                       ----------------------------------------
                                          Clifford H. Young
                                          President

                                      -10-
<PAGE>   11

               IN WITNESS WHEREOF, the parties hereto have executed this Third
Restated Shareholders Agreement as of the date first set forth above.

                                    "FOUNDER"

                                    /s/ CLIFFORD H. YOUNG
                                    -----------------------------------
                                    Clifford H. Young

                                      -11-
<PAGE>   12

                       HOLDER'S COUNTERPART SIGNATURE PAGE
                                   ICNT, INC.
                      THIRD RESTATED SHAREHOLDERS AGREEMENT
                                 APRIL 13, 2000

Crosspoint Venture Partners 1999

By    /s/ ROBERT HOFF
      ----------------------------------------
      Robert Hoff, General Partner

Spectrum Equity Investors III, L.P.

By:     Spectrum Equity Associates III, L.P.
        Its General Partner

   By:  /s/ BRION B. APPLEGATE
        -------------------------------------
        Brion B. Applegate, General Partner

SEI III Entrepreneurs' Fund, L.P.

By:     SEI III Entrepreneurs' LLC
        Its General Partner

By:     /s/ BRION B. APPLEGATE
        -------------------------------------
        Brion B. Applegate, Managing Member

Spectrum III Investment Managers' Fund, L.P.

By:     /s/ BRION B. APPLEGATE
        -------------------------------------
        Brion B. Applegate, General Partner

                                      -12-
<PAGE>   13

                       HOLDER'S COUNTERPART SIGNATURE PAGE
                                    ICNT,INC.
                      THIRD RESTATED SHAREHOLDERS AGREEMENT
                                 APRIL 13, 2000

/s/ DAVID CHUNG
---------------------------------------------
David Chung

/s/ NOEL RAHN
---------------------------------------------
Noel Rahn

/s/ PATRICK HEALY
---------------------------------------------
Patrick Healy

Big Basin Partners, L.P.

By: /s/ FRANK J. MARSHALL
    -----------------------------------------
    Frank J. Marshall, General Partner

idealab! Capital Partners II-A, LP
By its General Partner,
idealab! Capital Management II, LLC

 By: /s/ WILLIAM ELKUS
     ----------------------------------------
     William Elkus, Managing Member

idealab! Capital Partners II-B, LP
By its General Partner,
        idealab! Capital Management II, LLC

  By: /s/ WILLIAM ELKUS
      ---------------------------------------
      William Elkus, Managing Member

                                      -13-
<PAGE>   14

                       HOLDER'S COUNTERPART SIGNATURE PAGE
                                    ICNT,INC.
                      THIRD RESTATED SHAREHOLDERS AGREEMENT
                                 APRIL 13, 2000

idealab! Capital Principals Fund, LP
        By its General Partner,
        idealab! Capital Management II, LLC

By:     /s/ WILLIAM ELKUS
        ------------------------------------
        William Elkus, Managing Member

Winstar Communications

By: /s/ KENNETH J. ZINGHINI
   ------------------------------------------
      Name: Kenneth J. Zinghini
      Title: Senior Vice President

Cabletron Systems, Inc.

By: /s/ ERIC JAEGER
   ------------------------------------------
      Name: Eric Jaeger
      Title: Vice President

Efficient Networks, Inc.

By: /s/ KENNETH M. SIEGEL
   ------------------------------------------
      Name: Kenneth M. Siegel
      Title: Vice President

                                      -14-
<PAGE>   15

                       HOLDER'S COUNTERPART SIGNATURE PAGE
                                    ICNT,INC.
                      THIRD RESTATED SHAREHOLDERS AGREEMENT
                                 APRIL 13, 2000

Polycom

By: /s/ Michael R. Kouhry
   ---------------------------------------
      Name: Michael R. Kouhry
      Title: Chief Financial Officer

BS-METALS B2B Acquisition Corp.

By: /s/ Richard L. Metrick
   ---------------------------------------

Title: Chief Executive Officer
      ------------------------------------

Morgan Stanley Dean Witter Equity Funding, Inc.

By:  /s/ Thomas Clayton
   ---------------------------------------

Title: Vice President
     -------------------------------------

                                      -15-
<PAGE>   16

                       HOLDER'S COUNTERPART SIGNATURE PAGE
                                    ICNT,INC.
                      THIRD RESTATED SHAREHOLDERS AGREEMENT
                                 APRIL 13, 2000

Morgan Stanley Dean Witter

By: /s/ THOMAS CLAYTON
   --------------------------------------------
      Name: Thomas Clayton
      Title: Vice President

/s/ MATTHEW MOCHARY
-----------------------------------------------
Matthew Mochary

/s/ BERNARD PUCKETT
-----------------------------------------------
Bernard Puckett

                                      -16-

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