Backup Interface and IGRP

From: Armand D (ciscoworks2001@xxxxxxxxx)
Date: Sun Aug 18 2002 - 02:02:23 GMT-3


   
Hi,

I'm trying to use the "backup int" command to keep my
ISDN link quite. The link should only be active when
my router's ethernet 0/0 port loses connectivity. This
appears to looks fine when configured. It shows the
BRI 0/0 in standby mode.

However, when I unplug the ethernet cable it dial's
out the BRI link. I can see all my routes accross the
link. The problem is when I plug the cable back in and
e0/0 is back up up. The BRI link only comes down for 5
seconds and dials back up. It never goes back to
Standby mode. Any help on this would be appriciated.

Regards,

Armand

hostname R5
!
username r3 password 0 cisco
!
ip subnet-zero
!
ipx routing 0004.9ab7.8040
isdn switch-type basic-ni
!
!
interface Loopback0
 ip address 135.4.5.5 255.255.255.0
 no ip directed-broadcast
!
interface Ethernet0/0
 ip address 135.4.56.5 255.255.255.0
 no ip directed-broadcast
 backup delay 2 2
 backup interface BRI0/0
 ipx network 56
!
interface BRI0/0
 ip address 135.4.35.5 255.255.255.0
 no ip directed-broadcast
 encapsulation ppp
 dialer map ip 135.4.35.6 name r3 8358662
 dialer map ip 135.4.35.6 name r3 8358664
 dialer load-threshold 64 either
 dialer-group 1
 isdn switch-type basic-ni
 isdn spid1 0835866101 8358661
 isdn spid2 0835866301 8358663
 ppp callback request
 ppp authentication chap callin
 ppp multilink
 hold-queue 75 in
!
interface Ethernet0/1
 no ip address
 no ip directed-broadcast
!
router igrp 10
 timers basic 3 5 5 5 5
 network 135.4.0.0
!
ip classless
no ip http server
!
access-list 100 permit ip any any
dialer-list 1 protocol ip list 100
!
line con 0
 transport input none
line aux 0
line vty 0 4
 exec-timeout 0 0
 password cisco
 login
!
no scheduler allocate
end



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