I have a 3640 router (Pri rate Interface / backup ISDN interfaces) that is not performing as I thought it would...One of the channelised interfaces went down yesterday and the backup ISDN for that line kicked in, however I could no longer ping into the remote site once the backup came up - The remote router is a 1720. I could ping from router to router (In both directions). I could not ping from a client in Site A to router in Site B, or beyond. I could not ping from a client in Site B to router in Site A, or beyond.
Below is part of the config: SITE A - 3640 interface FastEthernet0/0 ip address 192.168.25.25 255.255.255.0 duplex auto speed 100 no cdp enable interface Serial0/0:1 bandwidth 128 backup delay 20 20 backup interface BRI1/1 ip unnumbered FastEthernet0/0 no ip directed-broadcast encapsulation ppp fair-queue 64 256 0 no cdp enable interface BRI1/1 ip unnumbered FastEthernet0/0 no ip directed-broadcast encapsulation ppp dialer idle-timeout 300 dialer string XXXXXXXX dialer hold-queue 20 dialer-group 1 isdn switch-type basic-net3 no cdp enable ppp authentication chap ip route 192.1.1.0 255.255.255.0 Serial0/0:1 ip route 192.1.1.0 255.255.255.0 BRI1/1 50 access-list 100 permit ip any any access-list 100 permit icmp any any dialer-list 1 protocol ip list 100 SITE B - 1720 interface BRI0 ip unnumbered FastEthernet0 encapsulation ppp dialer idle-timeout 300 dialer string XXXXXXX dialer hold-queue 50 dialer-group 1 isdn switch-type basic-net3 ppp authentication chap ! interface FastEthernet0 ip address 192.1.1.25 255.255.255.0 speed auto ! interface Serial0 bandwidth 128 backup delay 20 20 backup interface BRI0 ip unnumbered FastEthernet0 ! ip classless ip route 192.168.25.0 255.255.255.0 Serial0 ip route 192.168.25.0 255.255.255.0 BRI0 50 no ip http server ! access-list 100 permit ip any any access-list 100 permit icmp any any dialer-list 1 protocol ip list 100 Can anyone out there see anything obviously wrong with the above config.... Thanks in advance. Derek Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=62568&t=62568 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]