Newsgroup: it.comp.reti.cisco
Titolo: Problema con Cisco 1603 & ISDN

Ciao a tutti,
Utilizzo una coppia di Cisco 1603 < IOS 11.2(15a)P > per collegare via ISDN
due LAN.
Il router del quale allego la configurazione fa molte chiamate a vuoto
anche durante la notte o il week-end ( ho controllato con Telecom il log
delle chiamate ed il Cisco remoto sembra essere meno "chiaccherone" ).
Notare che TUTTI i server NT risiedono dall' altra parte del link ISDN e
che TUTTI i PC della LAN locale sono SPENTI, al di fuori dell' orario di
lavoro.
La durata delle chiamate č di un minuto circa ( infatti il dialer
idle-timeout č 60 sec ! ).
Oltre ad aggiungere una access-list simile ( CDP e keepalive sono disattivi
su entrambi i router ), qualcuno ha avuto problemi simili con questa
versione di IOS o sa darmi qualche dritta ???
Grazie in anticipo a chi mi vorrą rispondere !
access-list 101 deny ip  any  host  255.255.255.255
access-list 101 deny ip  any 224.0.0.0  0.255.255.255
access-list 101 permit ip  host 171.171.171.1  any 
access-list 101 permit ip  host 171.171.171.2  any 
...... 
Dentro a Int BRI0
ip access-group 101 out
ECCO LA CONFIGURAZIONE ATTUALE
DEVO usare il dialer-pool altrimenti il Cisco attiva DUE canali B ... anche
per trasferire un minimo quantitativo di traffico ( ping, telnet ecc. ).
Router#sh ver
Cisco Internetwork Operating System Software
IOS (tm) 1600 Software (C1600-SY-M), Version 11.2(15a)P, P RELEASE SOFTWARE
(fc1)
Copyright (c) 1986-1998 by cisco Systems, Inc.
Compiled Tue 25-Aug-98 01:25 by kpma
Image text-base: 0x02005000, data-base: 0x023D48F8
ROM: System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
ROM: 1600 Software (C1600-RBOOT-R), Version 12.0(3)T,  RELEASE SOFTWARE
(fc1)
Router uptime is 1 hour, 50 minutes
System restarted by power-on
System image file is "aaa0287.bin", booted via flash
 
cisco 1603 (68360) processor (revision C) with 7680K/512K bytes of memory.
Processor board ID 13603339, with hardware revision 00000001
Bridging software.
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
Basic Rate ISDN software, Version 1.0.
1 Ethernet/IEEE 802.3 interface(s)
1  serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
System/IO memory with parity disabled
8192K bytes of DRAM onboard
System running from RAM
8K bytes of non-volatile configuration memory.
4096K bytes of processor board PCMCIA flash (Read/Write)
 
Configuration register is 0x2102
 
Router#sh runn
Building configuration...
 
Current configuration:
!
version 11.2
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname Router
!
enable secret 5 $1$.Njd$G4GoEPUkGqzRyuoiHgsDF3
!
username Pippo password 0 Pluto
ip subnet-zero
no ip domain-lookup
isdn switch-type basic-net3
!
interface Ethernet0
 ip address 171.171.171.250 255.255.255.0
 no ip directed-broadcast
!
interface Serial0
 no ip address
 shutdown
!
interface BRI0
 description "Collegamento ISDN con sede remota"
 transmit-interface BRI0:1
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 no ip mroute-cache
 bandwidth 64
 no keepalive
 dialer pool-member 1 min-link 1 max-link 1
 no fair-queue
 compress stac
 no cdp enable
 ppp authentication chap
!
interface Dialer1
 ip unnumbered Ethernet0
 no ip directed-broadcast
 encapsulation ppp
 no ip mroute-cache
 no keepalive
 dialer remote-name Cavenago
 dialer idle-timeout 60
 dialer string 035xxxxxxxx
 dialer hold-queue 10
 dialer pool 1
 dialer-group 1
 no fair-queue
 compress stac
 no cdp enable
!
ip classless
ip route 169.169.169.0 255.255.255.0 Dialer1
ip route 170.170.170.0 255.255.255.0 Dialer1
ip route 172.172.172.0 255.255.255.0 Dialer1
ip route 173.173.173.0 255.255.255.0 Dialer1
ip route 174.174.174.0 255.255.255.0 Dialer1
ip http server
ip http access-class 2
access-list 2 permit 169.169.169.0 0.0.0.255
access-list 2 permit 170.170.170.0 0.0.0.255
access-list 2 permit 171.171.171.0 0.0.0.255
access-list 2 permit 172.172.172.0 0.0.0.255
access-list 2 permit 173.173.173.0 0.0.0.255
access-list 2 permit 174.174.174.0 0.0.0.255
dialer-list 1 protocol ip permit
banner motd ^C
-------------------------------------------------------------
Authorized access only
Disconnect IMMEDIATELY if you aren' t an authorized user
-------------------------------------------------------------
^C
!
line con 0
line vty 0 4
 password Paperino
 login
!
end
 
-- 
bru...@tin.it

 Grazie in anticipo a chi mi vorrà rispondere !
