<PAGE>   1
                                                                    EXHIBIT 10.6


                                   iPASS INC.

                             1999 STOCK OPTION PLAN

                             ADOPTED: JUNE 30, 1999
                     APPROVED BY SHAREHOLDERS: JULY 22, 1999
                         TERMINATION DATE: JUNE 29, 2009



1.       PURPOSES.

         (a) ELIGIBLE OPTION RECIPIENTS. The persons eligible to receive Options
are the Employees, Directors and Consultants of the Company and its Affiliates.

         (b) AVAILABLE OPTIONS. The purpose of the Plan is to provide a means by
which eligible recipients of Options may be given an opportunity to benefit from
increases in value of the Common Stock through the granting of the following
Options: (i) Incentive Stock Options and (ii) Nonstatutory Stock Options.

         (c) GENERAL PURPOSE. The Company, by means of the Plan, seeks to retain
the services of the group of persons eligible to receive Options, to secure and
retain the services of new members of this group and to provide incentives for
such persons to exert maximum efforts for the success of the Company and its
Affiliates.

2.       DEFINITIONS.

         (a) "AFFILIATE" means any parent corporation or subsidiary corporation
of the Company, whether now or hereafter existing, as those terms are defined in
Sections 424(e) and (f), respectively, of the Code.

         (b) "BOARD" means the Board of Directors of the Company.

         (c) "CAUSE" means the occurrence of any of the following (and only the
following): (i) conviction of the terminated Participant of any felony involving
fraud or act of dishonesty against the Company or its Affiliates; (ii) conduct
by the terminated Participant which, based upon good faith and reasonable
factual investigation and determination of the Company (or, if the terminated
Participant is an Officer, of the Board), demonstrates gross unfitness to serve;
or (iii) intentional, material violation by the terminated Participant of any
statutory or fiduciary duty of the terminated Participant to the Company or its
Affiliates. In addition, if the terminated Participant is not an Officer, Cause
also shall include poor performance of the terminated Participant's services for
the Company or its Affiliates as determined by the Company following (A) written
notice to the Participant describing the nature of such deficiency and (B) the
Participant's failure to cure such deficiency within thirty (30) days following
receipt of the such written notice.


                                       1
<PAGE>   2
         (d) "CODE" means the Internal Revenue Code of 1986, as amended.

         (e) "COMMITTEE" means a committee of one or more members of the Board
appointed by the Board in accordance with subsection 3(c).

         (f) "COMMON STOCK" means the common stock of the Company.

         (g) "COMPANY" means iPass Inc., a California corporation.

         (h) "CONSULTANT" means any person, including an advisor, (i) engaged by
the Company or an Affiliate to render consulting or advisory services and who is
compensated for such services or (ii) who is a member of the Board of Directors
of an Affiliate. However, the term "Consultant" shall not include either
Directors who are not compensated by the Company for their services as Directors
or Directors who are merely paid a director's fee by the Company for their
services as Directors.

         (i) "CONTINUOUS SERVICE" means that the Participant's service with the
Company or an Affiliate, whether as an Employee, Director or Consultant, is not
interrupted or terminated. The Participant's Continuous Service shall not be
deemed to have terminated merely because of a change in the capacity in which
the Participant renders service to the Company or an Affiliate as an Employee,
Consultant or Director or a change in the entity for which the Participant
renders such service, provided that there is no interruption or termination of
the Participant's Continuous Service. For example, a change in status from an
Employee of the Company to a Consultant of an Affiliate or a Director will not
constitute an interruption of Continuous Service. The Board or the chief
executive officer of the Company, in that party's sole discretion, may determine
whether Continuous Service shall be considered interrupted in the case of any
leave of absence approved by that party, including sick leave, military leave or
any other personal leave.

         (j) "COVERED EMPLOYEE" means the chief executive officer and the four
(4) other highest compensated officers of the Company for whom total
compensation is required to be reported to shareholders under the Exchange Act,
as determined for purposes of Section 162(m) of the Code.

         (k) "DIRECTOR" means a member of the Board of Directors of the Company.

         (l) "DISABILITY" means the permanent and total disability of a person
within the meaning of Section 22(e)(3) of the Code.

         (m) "EMPLOYEE" means any person employed by the Company or an
Affiliate. Mere service as a Director or payment of a director's fee by the
Company or an Affiliate shall not be sufficient to constitute "employment" by
the Company or an Affiliate.

         (n) "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.


                                       2
<PAGE>   3
         (o) "FAIR MARKET VALUE" means, as of any date, the value of the Common
Stock determined as follows and in each case in a manner consistent with Section
260.140.50 of Title 10 of the California Code of Regulations:

             (i) If the Common Stock is listed on any established stock exchange
or traded on the Nasdaq National Market or the Nasdaq SmallCap Market, the Fair
Market Value of a share of Common Stock shall be the closing sales price for
such stock (or the closing bid, if no sales were reported) as quoted on such
exchange or market (or the exchange or market with the greatest volume of
trading in the Common Stock) on the last market trading day prior to the day of
determination, as reported in The Wall Street Journal or such other source as
the Board deems reliable.

             (ii) In the absence of such markets for the Common Stock, the Fair
Market Value shall be determined in good faith by the Board.

         (p) "INCENTIVE STOCK OPTION" means an Option intended to qualify as an
incentive stock option within the meaning of Section 422 of the Code and the
regulations promulgated thereunder.

         (q) "LISTING DATE" means the first date upon which any security of the
Company is listed (or approved for listing) upon notice of issuance on any
securities exchange or designated (or approved for designation) upon notice of
issuance as a national market security on an interdealer quotation system.

         (r) "NON-EMPLOYEE DIRECTOR" means a Director who either (i) is not a
current Employee or Officer of the Company or its parent or a subsidiary, does
not receive compensation (directly or indirectly) from the Company or its parent
or a subsidiary for services rendered as a consultant or in any capacity other
than as a Director (except for an amount as to which disclosure would not be
required under Item 404(a) of Regulation S-K promulgated pursuant to the
Securities Act ("Regulation S-K")), does not possess an interest in any other
transaction as to which disclosure would be required under Item 404(a) of
Regulation S-K and is not engaged in a business relationship as to which
disclosure would be required under Item 404(b) of Regulation S-K; or (ii) is
otherwise considered a "non-employee director" for purposes of Rule 16b-3.

         (s) "NONSTATUTORY STOCK OPTION" means an Option not intended to qualify
as an Incentive Stock Option.

         (t) "OFFICER" means a person who is an officer of the Company within
the meaning of Section 16 of the Exchange Act and the rules and regulations
promulgated thereunder.

         (u) "OPTION" means an Incentive Stock Option or a Nonstatutory Stock
Option granted pursuant to the Plan.

         (v) "OPTION AGREEMENT" means a written agreement between the Company
and an Optionholder evidencing the terms and conditions of an individual Option
grant. Each Option Agreement shall be subject to the terms and conditions of the
Plan.


                                       3
<PAGE>   4
         (w) "OPTIONHOLDER" means a person to whom an Option is granted pursuant
to the Plan or, if applicable, such other person who holds an outstanding
Option.

         (x) "OUTSIDE DIRECTOR" means a Director who either (i) is not a current
employee of the Company or an "affiliated corporation" (within the meaning of
Treasury Regulations promulgated under Section 162(m) of the Code), is not a
former employee of the Company or an "affiliated corporation" receiving
compensation for prior services (other than benefits under a tax qualified
pension plan), was not an officer of the Company or an "affiliated corporation"
at any time and is not currently receiving direct or indirect remuneration from
the Company or an "affiliated corporation" for services in any capacity other
than as a Director or (ii) is otherwise considered an "outside director" for
purposes of Section 162(m) of the Code.

         (y) "PARTICIPANT" means a person to whom a Option is granted pursuant
to the Plan or, if applicable, such other person who holds an outstanding
Option.

         (z) "PLAN" means this iPass Inc. 1999 Stock Option Plan.

         (aa) "RULE 16B-3" means Rule 16b-3 promulgated under the Exchange Act
or any successor to Rule 16b-3, as in effect from time to time.

         (bb) "SECURITIES ACT" means the Securities Act of 1933, as amended.

         (cc) "TEN PERCENT SHAREHOLDER" means a person who owns (or is deemed to
own pursuant to Section 424(d) of the Code) stock possessing more than ten
percent (10%) of the total combined voting power of all classes of stock of the
Company or of any of its Affiliates.

3.       ADMINISTRATION.

         (a) ADMINISTRATION BY BOARD. The Board shall administer the Plan unless
and until the Board delegates administration to a Committee, as provided in
subsection 3(c). Any interpretation of the Plan by the Board and any decision by
the Board under the Plan shall be final and binding on all persons.

         (b) POWERS OF BOARD. The Board shall have the power, subject to, and
within the limitations of, the express provisions of the Plan:

             (i) To determine from time to time which of the persons eligible
under the Plan shall be granted Options; when and how each Option shall be
granted; what type or combination of types of Option shall be granted; the
provisions of each Option granted (which need not be identical), including the
time or times when a person shall be permitted to receive Common Stock pursuant
to a Option; and the number of shares of Common Stock with respect to which a
Option shall be granted to each such person.

             (ii) To construe and interpret the Plan and Options granted under
it, and to establish, amend and revoke rules and regulations for its
administration. The Board, in the exercise of this power, may correct any
defect, omission or inconsistency in the Plan or in any


                                       4
<PAGE>   5
Option Agreement, in a manner and to the extent it shall deem necessary or
expedient to make the Plan fully effective.

             (iii) To amend the Plan or a Option as provided in Section 11.

             (iv) Generally, to exercise such powers and to perform such acts as
the Board deems necessary or expedient to promote the best interests of the
Company which are not in conflict with the provisions of the Plan.

         (c) DELEGATION TO COMMITTEE.

             (i) GENERAL. The Board may delegate administration of the Plan to a
Committee or Committees of one (1) or more members of the Board, and the term
"Committee" shall apply to any person or persons to whom such authority has been
delegated. If administration is delegated to a Committee, the Committee shall
have, in connection with the administration of the Plan, the powers theretofore
possessed by the Board, including the power to delegate to a subcommittee any of
the administrative powers the Committee is authorized to exercise (and
references in this Plan to the Board shall thereafter be to the Committee or
subcommittee), subject, however, to such resolutions, not inconsistent with the
provisions of the Plan, as may be adopted from time to time by the Board. The
Board may abolish the Committee at any time and revest in the Board the
administration of the Plan.

             (ii) COMMITTEE COMPOSITION WHEN COMMON STOCK IS PUBLICLY TRADED. At
such time as the Common Stock is publicly traded, in the discretion of the
Board, a Committee may consist solely of two or more Outside Directors, in
accordance with Section 162(m) of the Code, and/or solely of two or more
Non-Employee Directors, in accordance with Rule 16b-3. Within the scope of such
authority, the Board or the Committee may (1) delegate to a committee of one or
more members of the Board who are not Outside Directors the authority to grant
Options to eligible persons who are either (a) not then Covered Employees and
are not expected to be Covered Employees at the time of recognition of income
resulting from such Option or (b) not persons with respect to whom the Company
wishes to comply with Section 162(m) of the Code and/or) (2) delegate to a
committee of one or more members of the Board who are not Non-Employee Directors
the authority to grant Options to eligible persons who are not then subject to
Section 16 of the Exchange Act.

4.       SHARES SUBJECT TO THE PLAN.

         (a) SHARE RESERVE. Subject to the provisions of Section 10 relating to
adjustments upon changes in Common Stock, the Common Stock that may be issued
pursuant to Options shall not exceed in the aggregate eight hundred fifty
thousand (850,000) shares of Common Stock.

         (b) REVERSION OF SHARES TO THE SHARE RESERVE. If any Option shall for
any reason expire or otherwise terminate, in whole or in part, without having
been exercised in full, the shares of Common Stock not acquired under such
Option shall revert to and again become available for issuance under the Plan.


                                       5
<PAGE>   6
         (c) SOURCE OF SHARES. The shares of Common Stock subject to the Plan
may be unissued shares or reacquired shares, bought on the market or otherwise.

5.       ELIGIBILITY.

         (a) ELIGIBILITY FOR SPECIFIC OPTIONS. Incentive Stock Options may be
granted only to Employees. Options other than Incentive Stock Options may be
granted to Employees, Directors and Consultants.

         (b) TEN PERCENT SHAREHOLDERS. A Ten Percent Shareholder shall not be
granted an Incentive Stock Option unless the exercise price of such Option is at
least one hundred ten percent (110%) of the Fair Market Value of the Common
Stock at the date of grant and the Option is not exercisable after the
expiration of five (5) years from the date of grant.

         (c) SECTION 162(M) LIMITATION. Subject to the provisions of Section 10
relating to adjustments upon changes in the shares of Common Stock, no Employee
shall be eligible to be granted Options covering more than five hundred thousand
(500,000) shares of Common Stock during any calendar year. This subsection 5(c)
shall not apply prior to the Listing Date and, following the Listing Date, this
subsection 5(c) shall not apply until (i) the earliest of: (1) the first
material modification of the Plan (including any increase in the number of
shares of Common Stock reserved for issuance under the Plan in accordance with
Section 4); (2) the issuance of all of the shares of Common Stock reserved for
issuance under the Plan; (3) the expiration of the Plan; or (4) the first
meeting of shareholders at which Directors are to be elected that occurs after
the close of the third calendar year following the calendar year in which
occurred the first registration of an equity security under Section 12 of the
Exchange Act; or (ii) such other date required by Section 162(m) of the Code and
the rules and regulations promulgated thereunder.

         (d) CONSULTANTS.

             (i) Prior to the Listing Date, a Consultant shall not be eligible
for the grant of a Option if, at the time of grant, either the offer or the sale
of the Company's securities to such Consultant is not exempt under Rule 701 of
the Securities Act ("Rule 701") because of the nature of the services that the
Consultant is providing to the Company, or because the Consultant is not a
natural person, or as otherwise provided by Rule 701, unless the Company
determines that such grant need not comply with the requirements of Rule 701 and
will satisfy another exemption under the Securities Act as well as comply with
the securities laws of all other relevant jurisdictions.

             (ii) From and after the Listing Date, a Consultant shall not be
eligible for the grant of a Option if, at the time of grant, a Form S-8
Registration Statement under the Securities Act ("Form S-8") is not available to
register either the offer or the sale of the Company's securities to such
Consultant because of the nature of the services that the Consultant is
providing to the Company, or because the Consultant is not a natural person, or
as otherwise provided by the rules governing the use of Form S-8, unless the
Company determines both (i) that such grant (A) shall be registered in another
manner under the Securities Act (e.g., on a


                                       6
<PAGE>   7
Form S-3 Registration Statement) or (B) does not require registration under the
Securities Act in order to comply with the requirements of the Securities Act,
if applicable, and (ii) that such grant complies with the securities laws of all
other relevant jurisdictions.

             (iii) As of April 7, 1999 Rule 701 and Form S-8 generally are
available to consultants and advisors only if (i) they are natural persons; (ii)
they provide bona fide services to the issuer, its parents, its majority-owned
subsidiaries or majority-owned subsidiaries of the issuer's parent; and (iii)
the services are not in connection with the offer or sale of securities in a
capital-raising transaction, and do not directly or indirectly promote or
maintain a market for the issuer's securities.

6.       OPTION PROVISIONS.

         Each Option shall be in such form and shall contain such terms and
conditions as the Board shall deem appropriate. All Options shall be separately
designated Incentive Stock Options or Nonstatutory Stock Options at the time of
grant, and, if certificates are issued, a separate certificate or certificates
will be issued for shares of Common Stock purchased on exercise of each type of
Option. The provisions of separate Options need not be identical, but each
Option shall include (through incorporation of provisions hereof by reference in
the Option or otherwise) the substance of each of the following provisions:

         (a) TERM. Subject to the provisions of subsection 5(b) regarding Ten
Percent Shareholders, no Incentive Stock Option shall be exercisable after the
expiration of ten (10) years from the date it was granted.

         (b) EXERCISE PRICE OF AN INCENTIVE STOCK OPTION. Subject to the
provisions of subsection 5(b) regarding Ten Percent Shareholders, the exercise
price of each Incentive Stock Option shall be not less than one hundred percent
(100%) of the Fair Market Value of the Common Stock subject to the Option on the
date the Option is granted. Notwithstanding the foregoing, an Incentive Stock
Option may be granted with an exercise price lower than that set forth in the
preceding sentence if such Option is granted pursuant to an assumption or
substitution for another option in a manner satisfying the provisions of Section
424(a) of the Code.

         (c) EXERCISE PRICE OF A NONSTATUTORY STOCK OPTION. The exercise price
of each Nonstatutory Stock Option shall be not less than eighty-five percent
(85%) of the Fair Market Value of the Common Stock subject to the Option on the
date the Option is granted. Notwithstanding the foregoing, a Nonstatutory Stock
Option may be granted with an exercise price lower than that set forth in the
preceding sentence if such Option is granted pursuant to an assumption or
substitution for another option in a manner satisfying the provisions of Section
424(a) of the Code.

         (d) CONSIDERATION. The purchase price of Common Stock acquired pursuant
to an Option shall be paid, to the extent permitted by applicable statutes and
regulations, either (i) in cash at the time the Option is exercised or (ii) at
the discretion of the Board at the time of the grant of the Option (or
subsequently in the case of a Nonstatutory Stock Option) (1) by delivery


                                       7
<PAGE>   8
to the Company of other Common Stock, (2) according to a deferred payment or
other similar arrangement with the Optionholder or (3) in any other form of
legal consideration that may be acceptable to the Board; provided, however, that
at any time that the Company is incorporated in Delaware, payment of the Common
Stock's "par value," as defined in the Delaware General Corporation Law, shall
not be made by deferred payment.

         In the case of any deferred payment arrangement, interest shall be
compounded at least annually and shall be charged at the minimum rate of
interest necessary to avoid the treatment as interest, under any applicable
provisions of the Code, of any amounts other than amounts stated to be interest
under the deferred payment arrangement.

         (e) TRANSFERABILITY OF AN INCENTIVE STOCK OPTION. An Incentive Stock
Option shall not be transferable except by will or by the laws of descent and
distribution and shall be exercisable during the lifetime of the Optionholder
only by the Optionholder. Notwithstanding the foregoing, the Optionholder may,
by delivering written notice to the Company, in a form satisfactory to the
Company, designate a third party who, in the event of the death of the
Optionholder, shall thereafter be entitled to exercise the Option.

         (f) TRANSFERABILITY OF A NONSTATUTORY STOCK OPTION. A Nonstatutory
Stock Option shall be transferable to the extent provided in the Option
Agreement. If the Nonstatutory Stock Option does not provide for
transferability, then the Nonstatutory Stock Option shall not be transferable
except by will or by the laws of descent and distribution and shall be
exercisable during the lifetime of the Optionholder only by the Optionholder.
Notwithstanding the foregoing, the Optionholder may, by delivering written
notice to the Company, in a form satisfactory to the Company, designate a third
party who, in the event of the death of the Optionholder, shall thereafter be
entitled to exercise the Option.

         (g) VESTING GENERALLY. The total number of shares of Common Stock
subject to an Option may, but need not, vest and therefore become exercisable in
periodic installments that may, but need not, be equal. The Option may be
subject to such other terms and conditions on the time or times when it may be
exercised (which may be based on performance or other criteria) as the Board may
deem appropriate. The vesting provisions of individual Options may vary. The
provisions of this subsection 6(g) are subject to any Option provisions
governing the minimum number of shares of Common Stock as to which an Option may
be exercised.

         (h) MINIMUM VESTING PRIOR TO THE LISTING DATE. Notwithstanding the
foregoing subsection 6(g), to the extent that the following restrictions on
vesting are required by Section 260.140.41(f) of Title 10 of the California Code
of Regulations at the time of the grant of the Option, then:

             (i) Options granted prior to the Listing Date to an Employee who is
not an Officer, Director or Consultant shall provide for vesting of the total
number of shares of Common Stock at a rate of at least twenty percent (20%) per
year over five (5) years from the date the Option was granted, subject to
reasonable conditions such as continued employment; and


                                       8
<PAGE>   9
             (ii) Options granted prior to the Listing Date to Officers,
Directors or Consultants may be made fully exercisable, subject to reasonable
conditions such as continued employment, at any time or during any period
established by the Company.

         (i) TERMINATION OF CONTINUOUS SERVICE. In the event an Optionholder's
Continuous Service terminates (other than upon the Optionholder's death or
Disability), the Optionholder may exercise his or her Option (to the extent that
the Optionholder was entitled to exercise such Option as of the date of
termination) but only within such period of time ending on the earlier of (i)
the date three (3) months following the termination of the Optionholder's
Continuous Service (or such longer or shorter period specified in the Option
Agreement), or (ii) the expiration of the term of the Option as set forth in the
Option Agreement. Notwithstanding the foregoing, if an Optionholder's Continuous
Service as an Employee, Director or Consultant is terminated for Cause, then the
Option shall terminate on the date of such cessation of services. If, after
termination, the Optionholder does not exercise his or her Option within the
time specified in the Option Agreement, the Option shall terminate.

         (j) EXTENSION OF TERMINATION DATE. An Optionholder's Option Agreement
may also provide that if the exercise of the Option following the termination of
the Optionholder's Continuous Service (other than for Cause or upon the
Optionholder's death or Disability) would be prohibited at any time solely
because the issuance of shares of Common Stock would violate the registration
requirements under the Securities Act, then the Option shall terminate on the
earlier of (i) the expiration of the term of the Option set forth in subsection
6(a) or (ii) the expiration of a period of three (3) months after the
termination of the Optionholder's Continuous Service during which the exercise
of the Option would not be in violation of such registration requirements.

         (k) DISABILITY OF OPTIONHOLDER. In the event that an Optionholder's
Continuous Service terminates as a result of the Optionholder's Disability, the
Optionholder may exercise his or her Option (to the extent that the Optionholder
was entitled to exercise such Option as of the date of termination), but only
within such period of time ending on the earlier of (i) the date twelve (12)
months following such termination (or such longer or shorter period specified in
the Option Agreement) or (ii) the expiration of the term of the Option as set
forth in the Option Agreement. If, after termination, the Optionholder does not
exercise his or her Option within the time specified herein, the Option shall
terminate.

         (l) DEATH OF OPTIONHOLDER. In the event (i) an Optionholder's
Continuous Service terminates as a result of the Optionholder's death or (ii)
the Optionholder dies within the period (if any) specified in the Option
Agreement after the termination of the Optionholder's Continuous Service for a
reason other than death, then the Option may be exercised (to the extent the
Optionholder was entitled to exercise such Option as of the date of death) by
the Optionholder's estate, by a person who acquired the right to exercise the
Option by bequest or inheritance or by a person designated to exercise the
option upon the Optionholder's death pursuant to subsection 6(e) or 6(f), but
only within the period ending on the earlier of (1) the date eighteen (18)
months following the date of death (or such longer or shorter period specified
in the Option Agreement) or (2) the expiration of the term of such Option as set
forth in the Option


                                       9
<PAGE>   10
Agreement. If, after death, the Option is not exercised within the time
specified herein, the Option shall terminate.

         (m) EARLY EXERCISE. The Option may, but need not, include a provision
whereby the Optionholder may elect at any time before the Optionholder's
Continuous Service terminates to exercise the Option as to any part or all of
the shares of Common Stock subject to the Option prior to the full vesting of
the Option. Any unvested shares of Common Stock so purchased may be subject to a
repurchase option in favor of the Company or to any other restriction the Board
determines to be appropriate.

         (n) RIGHT OF REPURCHASE. The Option may, but need not, include a
provision whereby the Company may elect, prior to the Listing Date, to
repurchase all or any part of the vested shares of Common Stock acquired by the
Optionholder pursuant to the exercise of the Option; provided, however, that (i)
such repurchase right shall be exercisable only with (A) the ninety (90) day
period following the termination of Continuous Service, or (B) such longer
period as may be agreed to by the Company and the Optionholder (for example, for
purposes of satisfying the requirements of Section 1202(c)(3) of the Code
(regarding "qualified small business stock")), (ii) such repurchase right shall
be exercisable for less than all of the vested shares only with the
Optionholder's consent, and (iii) such right shall be exercisable only for cash
or cancellation of purchase money indebtedness for the shares at a repurchase
price equal to the greater of (A) the stock's Fair Market Value at the time of
such termination or (B) the original purchase price paid for such shares by the
Optionholder. Notwithstanding the foregoing, the right to repurchase vested
shares may be subject to different terms in the Board's discretion. Should the
right of repurchase be assigned by the Company, the assignee shall pay the
Company cash equal to the difference between the original purchase price and the
stock's Fair Market Value if the original purchase price is less than the
stock's Fair Market Value.

         (o) RIGHT OF FIRST REFUSAL. The Option may, but need not, include a
provision whereby the Company may elect, prior to the Listing Date, to exercise
a right of first refusal following receipt of notice from the Optionholder of
the intent to transfer all or any part of the shares of Common Stock received
upon the exercise of the Option. Except as expressly provided in this subsection
6(n), such right of first refusal shall otherwise comply with any applicable
provisions of the Bylaws of the Company.

         (p) RE-LOAD OPTIONS. Without in any way limiting the authority of the
Board to make or not to make grants of Options hereunder, the Board shall have
the authority (but not an obligation) to include as part of any Option Agreement
a provision entitling the Optionholder to a further Option (a "Re-Load Option")
in the event the Optionholder exercises the Option evidenced by the Option
Agreement, in whole or in part, by surrendering other shares of Common Stock in
accordance with this Plan and the terms and conditions of the Option Agreement.
Any such Re-Load Option shall (i) provide for a number of shares of Common Stock
equal to the number of shares of Common Stock surrendered as part or all of the
exercise price of such Option; (ii) have an expiration date which is the same as
the expiration date of the Option the exercise of which gave rise to such
Re-Load Option; and (iii) have an exercise price which is equal to one hundred
percent (100%) of the Fair Market Value of the Common Stock


                                       10
<PAGE>   11
subject to the Re-Load Option on the date of exercise of the original Option.
Notwithstanding the foregoing, a Re-Load Option shall be subject to the same
exercise price and term provisions heretofore described for Options under the
Plan.

             Any such Re-Load Option may be an Incentive Stock Option or a
Nonstatutory Stock Option, as the Board may designate at the time of the grant
of the original Option; provided, however, that the designation of any Re-Load
Option as an Incentive Stock Option shall be subject to the one hundred thousand
dollar ($100,000) annual limitation on the exercisability of Incentive Stock
Options described in subsection 10(d) and in Section 422(d) of the Code. There
shall be no Re-Load Options on a Re-Load Option. Any such Re-Load Option shall
be subject to the availability of sufficient shares of Common Stock under
subsection 4(a) and the "Section 162(m) Limitation" on the grants of Options
under subsection 5(c) and shall be subject to such other terms and conditions as
the Board may determine which are not inconsistent with the express provisions
of the Plan regarding the terms of Options.

7.       COVENANTS OF THE COMPANY.

         (a) AVAILABILITY OF SHARES. During the terms of the Options, the
Company shall keep available at all times the number of shares of Common Stock
required to satisfy such Options.

         (b) SECURITIES LAW COMPLIANCE. The Company shall seek to obtain from
each regulatory commission or agency having jurisdiction over the Plan such
authority as may be required to grant Options and to issue and sell shares of
Common Stock upon exercise of the Options; provided, however, that this
undertaking shall not require the Company to register under the Securities Act
the Plan, any Option or any Common Stock issued or issuable pursuant to any such
Option. If, after reasonable efforts, the Company is unable to obtain from any
such regulatory commission or agency the authority which counsel for the Company
deems necessary for the lawful issuance and sale of Common Stock under the Plan,
the Company shall be relieved from any liability for failure to issue and sell
Common Stock upon exercise of such Options unless and until such authority is
obtained.

8.       USE OF PROCEEDS FROM STOCK.

         Proceeds from the sale of Common Stock pursuant to Options shall
constitute general funds of the Company.

9.       MISCELLANEOUS.

         (a) ACCELERATION OF EXERCISABILITY AND VESTING. The Board shall have
the power to accelerate the time at which a Option may first be exercised or the
time during which a Option or any part thereof will vest in accordance with the
Plan, notwithstanding the provisions in the Option stating the time at which it
may first be exercised or the time during which it will vest.

         (b) SHAREHOLDER RIGHTS. No Participant shall be deemed to be the holder
of, or to have any of the rights of a holder with respect to, any shares of
Common Stock subject to such


                                       11
<PAGE>   12
Option unless and until such Participant has satisfied all requirements for
exercise of the Option pursuant to its terms.

         (c) NO EMPLOYMENT OR OTHER SERVICE RIGHTS. Nothing in the Plan or any
instrument executed or Option granted pursuant thereto shall confer upon any
Participant any right to continue to serve the Company or an Affiliate in the
capacity in effect at the time the Option was granted or shall affect the right
of the Company or an Affiliate to terminate (i) the employment of an Employee
with or without notice and with or without cause, (ii) the service of a
Consultant pursuant to the terms of such Consultant's agreement with the Company
or an Affiliate or (iii) the service of a Director pursuant to the Bylaws of the
Company or an Affiliate, and any applicable provisions of the corporate law of
the state in which the Company or the Affiliate is incorporated, as the case may
be.

         (d) INCENTIVE STOCK OPTION $100,000 LIMITATION. To the extent that the
aggregate Fair Market Value (determined at the time of grant) of Common Stock
with respect to which Incentive Stock Options are exercisable for the first time
by any Optionholder during any calendar year (under all plans of the Company and
its Affiliates) exceeds one hundred thousand dollars ($100,000), the Options or
portions thereof which exceed such limit (according to the order in which they
were granted) shall be treated as Nonstatutory Stock Options.

         (e) INVESTMENT ASSURANCES. The Company may require a Participant, as a
condition of exercising or acquiring Common Stock under any Option, (i) to give
written assurances satisfactory to the Company as to the Participant's knowledge
and experience in financial and business matters and/or to employ a purchaser
representative reasonably satisfactory to the Company who is knowledgeable and
experienced in financial and business matters and that he or she is capable of
evaluating, alone or together with the purchaser representative, the merits and
risks of exercising the Option; and (ii) to give written assurances satisfactory
to the Company stating that the Participant is acquiring Common Stock subject to
the Option for the Participant's own account and not with any present intention
of selling or otherwise distributing the Common Stock. The foregoing
requirements, and any assurances given pursuant to such requirements, shall be
inoperative if (A) the issuance of the shares of Common Stock upon the exercise
or acquisition of Common Stock under the Option has been registered under a then
currently effective registration statement under the Securities Act or (B) as to
any particular requirement, a determination is made by counsel for the Company
that such requirement need not be met in the circumstances under the then
applicable securities laws. The Company may, upon advice of counsel to the
Company, place legends on stock certificates issued under the Plan as such
counsel deems necessary or appropriate in order to comply with applicable
securities laws, including, but not limited to, legends restricting the transfer
of the Common Stock.

         (f) WITHHOLDING OBLIGATIONS. To the extent provided by the terms of a
Option Agreement, the Participant may satisfy any federal, state or local tax
withholding obligation relating to the exercise or acquisition of Common Stock
under a Option by any of the following means (in addition to the Company's right
to withhold from any compensation paid to the Participant by the Company) or by
a combination of such means: (i) tendering a cash payment; (ii) authorizing the
Company to withhold shares of Common Stock from the shares of Common


                                       12
<PAGE>   13
Stock otherwise issuable to the participant as a result of the exercise or
acquisition of Common Stock under the Option; provided, however, that no shares
are withheld with a value exceeding the minimum amount of tax required to be
withheld by law; or (iii) delivering to the Company owned and unencumbered
shares of Common Stock.

10.      ADJUSTMENTS UPON CHANGES IN STOCK.

         (a) CAPITALIZATION ADJUSTMENTS. If any change is made in the Common
Stock subject to the Plan, or subject to any Option, without the receipt of
consideration by the Company (through merger, consolidation, reorganization,
recapitalization, reincorporation, stock dividend, dividend in property other
than cash, stock split, liquidating dividend, combination of shares, exchange of
shares, change in corporate structure or other transaction not involving the
receipt of consideration by the Company), the Plan will be appropriately
adjusted in the class(es) and maximum number of securities subject to the Plan
pursuant to subsection 4(a) and the maximum number of securities subject to
award to any person pursuant to subsection 5(c), and the outstanding Options
will be appropriately adjusted in the class(es) and number of securities and
price per share of Common Stock subject to such outstanding Options. The Board
shall make such adjustments, and its determination shall be final, binding and
conclusive. (The conversion of any convertible securities of the Company shall
not be treated as a transaction "without receipt of consideration" by the
Company.)

         (b) CHANGE IN CONTROL--DISSOLUTION OR LIQUIDATION. In the event of a
dissolution or liquidation of the Company, then all outstanding Options shall
terminate immediately prior to such event.

         (c) CHANGE IN CONTROL--ASSET SALE, MERGER, CONSOLIDATION OR REVERSE
MERGER. In the event of (i) a sale, lease or other disposition of all or
substantially all of the assets of the Company, (ii) a merger or consolidation
in which the Company is not the surviving corporation or (iii) a reverse merger
in which the Company is the surviving corporation but the shares of Common Stock
outstanding immediately preceding the merger are converted by virtue of the
merger into other property, whether in the form of securities, cash or
otherwise, then any surviving corporation or acquiring corporation shall assume
or continue any Options outstanding under the Plan or shall substitute similar
Options (including an award to acquire the same consideration paid to the
shareholders in the transaction described in this subsection 10(c)) for those
outstanding under the Plan. In the event any surviving corporation or acquiring
corporation refuses to assume or continue such Options or to substitute similar
Options for those outstanding under the Plan, then with respect to Options
outstanding under the Plan, such Options shall terminate if not exercised prior
to such event.

11.      AMENDMENT OF THE PLAN AND OPTIONS.

         (a) AMENDMENT OF PLAN. The Board at any time, and from time to time,
may amend the Plan. However, except as provided in Section 10 relating to
adjustments upon changes in Common Stock, no amendment shall be effective unless
approved by the shareholders of the Company to the extent shareholder approval
is necessary to satisfy the requirements of Section 422 of the Code, Rule 16b-3
or any Nasdaq or securities exchange listing requirements.


                                       13
<PAGE>   14
         (b) SHAREHOLDER APPROVAL. The Board may, in its sole discretion, submit
any other amendment to the Plan for shareholder approval, including, but not
limited to, amendments to the Plan intended to satisfy the requirements of
Section 162(m) of the Code and the regulations thereunder regarding the
exclusion of performance-based compensation from the limit on corporate
deductibility of compensation paid to certain executive officers.

         (c) CONTEMPLATED AMENDMENTS. It is expressly contemplated that the
Board may amend the Plan in any respect the Board deems necessary or advisable
to provide eligible Employees with the maximum benefits provided or to be
provided under the provisions of the Code and the regulations promulgated
thereunder relating to Incentive Stock Options and/or to bring the Plan and/or
Incentive Stock Options granted under it into compliance therewith.

         (d) NO IMPAIRMENT OF RIGHTS. Rights under any Option granted before
amendment of the Plan shall not be impaired by any amendment of the Plan unless
(i) the Company requests the consent of the Participant and (ii) the Participant
consents in writing.

         (e) AMENDMENT OF OPTIONS. The Board at any time, and from time to time,
may amend the terms of any one or more Options; provided, however, that the
rights under any Option shall not be impaired by any such amendment unless (i)
the Company requests the consent of the Participant and (ii) the Participant
consents in writing.

12.      TERMINATION OR SUSPENSION OF THE PLAN.

         (a) PLAN TERM. The Board may suspend or terminate the Plan at any time.
Unless sooner terminated, the Plan shall terminate on the day before the tenth
(10th) anniversary of the date the Plan is adopted by the Board or approved by
the shareholders of the Company, whichever is earlier. No Options may be granted
under the Plan while the Plan is suspended or after it is terminated.

         (b) NO IMPAIRMENT OF RIGHTS. Suspension or termination of the Plan
shall not impair rights and obligations under any Option granted while the Plan
is in effect except with the written consent of the Participant.

13.      EFFECTIVE DATE OF PLAN.

         The Plan shall become effective as determined by the Board, but no
Option shall be exercised (or, in the case of a stock bonus, shall be granted)
unless and until the Plan has been approved by the shareholders of the Company,
which approval shall be within twelve (12) months before or after the date the
Plan is adopted by the Board.

14.      CHOICE OF LAW.

         The law of the State of California shall govern all questions
concerning the construction, validity and interpretation of this Plan, without
regard to such state's conflict of laws rules.


                                       14
<PAGE>   15
                                   iPASS INC.
                             1999 STOCK OPTION PLAN

                             STOCK OPTION AGREEMENT
                   (INCENTIVE AND NONSTATUTORY STOCK OPTIONS)


         Pursuant to your Stock Option Grant Notice ("Grant Notice") and this
Stock Option Agreement, iPass, Inc. (the "Company") has granted you an option
under its 1999 Stock Option Plan (the "Plan") to purchase the number of shares
of the Company's Common Stock indicated in your Grant Notice at the exercise
price indicated in your Grant Notice. Defined terms not explicitly defined in
this Stock Option Agreement but defined in the Plan shall have the same
definitions as in the Plan.

         The details of your option are as follows:

         1.       VESTING. Subject to the limitations contained herein, your
option will vest as provided in your Grant Notice, provided that vesting will
cease upon the termination of your Continuous Service.

         2.       NUMBER OF SHARES AND EXERCISE PRICE. The number of shares of
Common Stock subject to your option and your exercise price per share referenced
in your Grant Notice may be adjusted from time to time for Capitalization
Adjustments, as provided in the Plan.

         3.       EXERCISE PRIOR TO VESTING ("EARLY EXERCISE"). If permitted in
your Grant Notice (i.e., the "Exercise Schedule" indicates that "Early Exercise"
of your option is permitted) and subject to the provisions of your option, you
may elect at any time that is both (i) during the period of your Continuous
Service and (ii) during the term of your option, to exercise all or part of your
option, including the nonvested portion of your option; provided, however, that:

                  (a) a partial exercise of your option shall be deemed to cover
first vested shares of Common Stock and then the earliest vesting installment of
unvested shares of Common Stock;

                  (b) any shares of Common Stock so purchased from installments
that have not vested as of the date of exercise shall be subject to the purchase
option in favor of the Company as described in the Company's form of Early
Exercise Stock Purchase Agreement;

                  (c) you shall enter into the Company's form of Early Exercise
Stock Purchase Agreement with a vesting schedule that will result in the same
vesting as if no early exercise had occurred; and

                  (d) if your option is an incentive stock option, then, as
provided in the Plan, to the extent that the aggregate Fair Market Value
(determined at the time of grant) of the shares of Common Stock with respect to
which your option plus all other incentive stock options you hold are
exercisable for the first time by you during any calendar year (under all plans
of the


                                       1
<PAGE>   16
Company and its Affiliates) exceeds one hundred thousand dollars ($100,000),
your option(s) or portions thereof that exceed such limit (according to the
order in which they were granted) shall be treated as nonstatutory stock
options.

         4.       METHOD OF PAYMENT. Payment of the exercise price is due in
full upon exercise of all or any part of your option. You may elect to make
payment of the exercise price in cash or by check or in any other manner
PERMITTED BY YOUR GRANT NOTICE, which may include one or more of the following:

                  (a) In the Company's sole discretion at the time your option
is exercised and provided that at the time of exercise the Common Stock is
publicly traded and quoted regularly in The Wall Street Journal, pursuant to a
program developed under Regulation T as promulgated by the Federal Reserve Board
that, prior to the issuance of Common Stock, results in either the receipt of
cash (or check) by the Company or the receipt of irrevocable instructions to pay
the aggregate exercise price to the Company from the sales proceeds.

                  (b) Provided that at the time of exercise the Common Stock is
publicly traded and quoted regularly in The Wall Street Journal, by delivery of
already-owned shares of Common Stock either that you have held for the period
required to avoid a charge to the Company's reported earnings (generally six
months) or that you did not acquire, directly or indirectly from the Company,
that are owned free and clear of any liens, claims, encumbrances or security
interests, and that are valued at Fair Market Value on the date of exercise.
"Delivery" for these purposes, in the sole discretion of the Company at the time
you exercise your option, shall include delivery to the Company of your
attestation of ownership of such shares of Common Stock in a form approved by
the Company. Notwithstanding the foregoing, you may not exercise your option by
tender to the Company of Common Stock to the extent such tender would violate
the provisions of any law, regulation or agreement restricting the redemption of
the Company's stock.

                  (c) Pursuant to the following deferred payment alternative:

                      (i) Not less than one hundred percent (100%) of the
aggregate exercise price, plus accrued interest, shall be due four (4) years
from date of exercise or, at the Company's election, upon termination of your
Continuous Service.

                      (ii) Interest shall be compounded at least annually and
shall be charged at the minimum rate of interest necessary to avoid the
treatment as interest, under any applicable provisions of the Code, of any
portion of any amounts other than amounts stated to be interest under the
deferred payment arrangement.

                      (iii) At any time that the Company is incorporated in
Delaware, payment of the Common Stock's "par value," as defined in the Delaware
General Corporation Law, shall be made in cash and not by deferred payment.

                      (iv) In order to elect the deferred payment alternative,
you must, as a part of your written notice of exercise, give notice of the
election of this payment alternative and,


                                       2
<PAGE>   17
in order to secure the payment of the deferred exercise price to the Company
hereunder, if the Company so requests, you must tender to the Company a
promissory note and a security agreement covering the purchased shares of Common
Stock, both in form and substance satisfactory to the Company, or such other or
additional documentation as the Company may request.

         5.       WHOLE SHARES. You may exercise your option only for whole
shares of Common Stock.

         6.       SECURITIES LAW COMPLIANCE. Notwithstanding anything to the
contrary contained herein, you may not exercise your option unless the shares of
Common Stock issuable upon such exercise are then registered under the
Securities Act or, if such shares of Common Stock are not then so registered,
the Company has determined that such exercise and issuance would be exempt from
the registration requirements of the Securities Act. The exercise of your option
must also comply with other applicable laws and regulations governing your
option, and you may not exercise your option if the Company determines that such
exercise would not be in material compliance with such laws and regulations.

         7.       TERM. The term of your option commences on the Date of Grant
and expires upon the EARLIEST of the following:

                  (a) immediately upon termination of your Continuous Service
for Cause;

                  (b) three (3) months after the termination of your Continuous
Service for any reason other than your Disability, death or Cause, provided that
if during any part of such three-(3-) month period your option is not
exercisable solely because of the condition set forth in the preceding paragraph
relating to "Securities Law Compliance," your option shall not expire until the
earlier of the Expiration Date or until it shall have been exercisable for an
aggregate period of three (3) months after the termination of your Continuous
Service;

                  (c) twelve (12) months after the termination of your
Continuous Service due to your Disability;

                  (d) eighteen (18) months after your death if you die either
during your Continuous Service or within three (3) months after your Continuous
Service terminates;

                  (e) the Expiration Date indicated in your Grant Notice; or

                  (f) the tenth (10th) anniversary of the Date of Grant.

         If your option is an incentive stock option, note that, to obtain the
federal income tax advantages associated with an "incentive stock option," the
Code requires that at all times beginning on the date of grant of your option
and ending on the day three (3) months before the date of your option's
exercise, you must be an employee of the Company or an Affiliate, except in the
event of your death or Disability. The Company has provided for extended
exercisability of your option under certain circumstances for your benefit but
cannot guarantee that your option


                                       3
<PAGE>   18
will necessarily be treated as an "incentive stock option" if you continue to
provide services to the Company or an Affiliate as a Consultant or Director
after your employment terminates or if you otherwise exercise your option more
than three (3) months after the date your employment terminates.

         8.       EXERCISE.

                  (a) You may exercise the vested portion of your option (and
the unvested portion of your option if your Grant Notice so permits) during its
term by delivering a Notice of Exercise (in a form designated by the Company)
together with the exercise price to the Secretary of the Company, or to such
other person as the Company may designate, during regular business hours,
together with such additional documents as the Company may then require.

                  (b) By exercising your option you agree that, as a condition
to any exercise of your option, the Company may require you to enter into an
arrangement providing for the payment by you to the Company of any tax
withholding obligation of the Company arising by reason of (1) the exercise of
your option, (2) the lapse of any substantial risk of forfeiture to which the
shares of Common Stock are subject at the time of exercise, or (3) the
disposition of shares of Common Stock acquired upon such exercise.

                  (c) If your option is an incentive stock option, by exercising
your option you agree that you will notify the Company in writing within fifteen
(15) days after the date of any disposition of any of the shares of the Common
Stock issued upon exercise of your option that occurs within two (2) years after
the date of your option grant or within one (1) year after such shares of Common
Stock are transferred upon exercise of your option.

                  (d) By exercising your option you agree that the Company (or a
representative of the underwriter(s)) may, in connection with the first
underwritten registration of the offering of any securities of the Company under
the Securities Act, require that you not sell, dispose of, transfer, make any
short sale of, grant any option for the purchase of, or enter into any hedging
or similar transaction with the same economic effect as a sale, any shares of
Common Stock or other securities of the Company held by you, for a period of
time specified by the underwriter(s) (not to exceed one hundred eighty (180)
days) following the effective date of the registration statement of the Company
filed under the Securities Act. You further agree to execute and deliver such
other agreements as may be reasonably requested by the Company and/or the
underwriter(s) that are consistent with the foregoing or that are necessary to
give further effect thereto. In order to enforce the foregoing covenant, the
Company may impose stop-transfer instructions with respect to your shares of
Common Stock until the end of such period.

         9.       TRANSFERABILITY. Your option is not transferable, except by
will or by the laws of descent and distribution, and is exercisable during your
life only by you. Notwithstanding the foregoing, by delivering written notice to
the Company, in a form satisfactory to the Company, you may designate a third
party who, in the event of your death, shall thereafter be entitled to exercise
your option.


                                       4
<PAGE>   19
         10.      RIGHT OF FIRST REFUSAL. Shares of Common Stock that you
acquire upon exercise of your option are subject to any right of first refusal
that may be described in the Company's bylaws in effect at such time the Company
elects to exercise its right. The Company's right of first refusal shall expire
on the Listing Date.

         11.      RIGHT OF REPURCHASE. To the extent provided in the Company's
bylaws as amended from time to time, the Company shall have the right to
repurchase all or any part of the shares of Common Stock you acquire pursuant to
the exercise of your option.

         12.      OPTION NOT A SERVICE CONTRACT. Your option is not an
employment or service contract, and nothing in your option shall be deemed to
create in any way whatsoever any obligation on your part to continue in the
employ of the Company or an Affiliate, or of the Company or an Affiliate to
continue your employment. In addition, nothing in your option shall obligate the
Company or an Affiliate, their respective shareholders, Boards of Directors,
Officers or Employees to continue any relationship that you might have as a
Director or Consultant for the Company or an Affiliate.

         13.      WITHHOLDING OBLIGATIONS.

                  (a) At the time you exercise your option, in whole or in part,
or at any time thereafter as requested by the Company, you hereby authorize
withholding from payroll and any other amounts payable to you, and otherwise
agree to make adequate provision for (including by means of a "cashless
exercise" pursuant to a program developed under Regulation T as promulgated by
the Federal Reserve Board to the extent permitted by the Company), any sums
required to satisfy the federal, state, local and foreign tax withholding
obligations of the Company or an Affiliate, if any, which arise in connection
with your option.

                  (b) Upon your request and subject to approval by the Company,
in its sole discretion, and compliance with any applicable conditions or
restrictions of law, the Company may withhold from fully vested shares of Common
Stock otherwise issuable to you upon the exercise of your option a number of
whole shares of Common Stock having a Fair Market Value, determined by the
Company as of the date of exercise, not in excess of the minimum amount of tax
required to be withheld by law. If the date of determination of any tax
withholding obligation is deferred to a date later than the date of exercise of
your option, share withholding pursuant to the preceding sentence shall not be
permitted unless you make a proper and timely election under Section 83(b) of
the Code, covering the aggregate number of shares of Common Stock acquired upon
such exercise with respect to which such determination is otherwise deferred, to
accelerate the determination of such tax withholding obligation to the date of
exercise of your option. Notwithstanding the filing of such election, shares of
Common Stock shall be withheld solely from fully vested shares of Common Stock
determined as of the date of exercise of your option that are otherwise issuable
to you upon such exercise. Any adverse consequences to you arising in connection
with such share withholding procedure shall be your sole responsibility.

                  (c) You may not exercise your option unless the tax
withholding obligations of the Company and/or any Affiliate are satisfied.
Accordingly, you may not be able to exercise


                                       5
<PAGE>   20
your option when desired even though your option is vested, and the Company
shall have no obligation to issue a certificate for such shares of Common Stock
or release such shares of Common Stock from any escrow provided for herein.

         14.      NOTICES. Any notices provided for in your option or the Plan
shall be given in writing and shall be deemed effectively given upon receipt or,
in the case of notices delivered by mail by the Company to you, five (5) days
after deposit in the United States mail, postage prepaid, addressed to you at
the last address you provided to the Company.

         15.      GOVERNING PLAN DOCUMENT. Your option is subject to all the
provisions of the Plan, the provisions of which are hereby made a part of your
option, and is further subject to all interpretations, amendments, rules and
regulations which may from time to time be promulgated and adopted pursuant to
the Plan. In the event of any conflict between the provisions of your option and
those of the Plan, the provisions of the Plan shall control.


                                       6