Cisco dial backup with async interface

Hi I'm trying to configure two Cisco 2621 routers for dial backup. Main interface is Fastethernet 0/0. Backup is dialer1. When router TSFSDINLINRT1 int fast 0/0 goes down dialer 1 come up but there is no dial action. I can dial trough manually so I know the phone circuits all are operational. Anything missing in my config?

Main Site Router TSFSCCRT1

Ip subnet-zero Ip cef

Interface loopback 0 No ip address

Interface FastEthernet0/0 Ip address 10.202.170.220 255.255.255.0 Speed auto Full-duplex

Interface Async 1 No ip address Encapsulation ppp Dialer in-band Dialer pool-member 1 Ppp authentication chap Async mode dedicated Async default routing

Interface async 2 No ip address

Username TSFSBANLINRT1 password tsfsdialbackup

Interface Dialer1 Ip unnumbered FastEthernet 0/0 Encapsulation ppp Dialer pool 1 Dialer remote-name TSFSBANLINRT1 Dialer string 4903 Ppp authentication chap

Router rip Redistribute connected Network 10.0.0.0

Ip http server Ip classless

Dialer-list 1 protocol ip permit

Line con 0 Line 1 2 Modem inout Transport input all Stopbits 1 Speed 115200 Flowcontrol hardware

Remote Site Router TSFSBANLINRT1

Ip subnet-zero Ip cef

Interface loopback 0 No ip address

Interface FastEthernet0/0 Ip address 10.202.170.223 255.255.255.0 backup delay 15 15 backup interface Dialer1 speed auto full-duplex

Interface Async 1 Ip unnumbered Fastethernet0/0 Encapsulation ppp Dialer in-band Dialer pool-member 1 Async mode dedicated Ppp authentication chap Async default routing

Interface Dialer1 Ip unnumbered FastEthernet 0/0 encapsulation ppp dialer pool 1 dialer remote-name TSFSCCRT1 dialer string 29617181 ppp authentication chap

username TSFSCCRT1 password tsfsdialbackup

Interface Vlan1 Ip address 10.202.173.200 255.255.255.0

Router rip Redistribute connected Network 10.0.0.0

Ip http server Ip classless

Dialer-list 1 protocol ip permit

Line 1 Modem inout Transport input all Autoselect ppp Stopbits 1 Speed 115200 Flowcontrol hardware

Reply to
SLECS99
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I think you need "dialer in-band" on the dialer interface not on the async interface.

Scott

Reply to
thrill5

Reply to
SLECS99

You have no dialer-group configured on your Dialer1, so no traffic is interesting, so dialer will never want to dial.

I'm not too crazy about using "backup interface" - it's not very smart about when it needs to bring up the backup - and this is especially true for a LAN main interface. If you are using RIP, and if your remote router normally learns some interesting route from some other RIP speaker on its LAN, then using dialer watch to watch this route to control the dialing would be a good thing to do.

Configuration example for dialer watch (see 13-3):

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If dialer watch ain't working the way you want it to, I would turn on some debugs - here's a good example of how it should look:

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Aaron

Reply to
Aaron Leonard

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