Configure Dial Backup 1811 ISR

Unanswered Question
Aug 12th, 2007

I have a cisco 1811 ISR and i want to configure the dial backup on the analog port of router V.92. I don't want to conect an externam analog moden on AUX port. I don't know how to configure this process.

I have this problem too.
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slayerhawk Mon, 08/27/2007 - 13:33

interface FastEthernet0

backup delay 10 60

backup interface Async1

ip address "ISP static ip and mask"

ip nat outside

ip virtual-reassembly

no ip route-cache cef

no ip route-cache

no ip mroute-cache

speed auto

half-duplex

interface Async1

ip address 170.1.1.16 255.255.255.0

ip nat outside

ip virtual-reassembly

encapsulation ppp

dialer in-band

dialer idle-timeout 300

dialer string "phone number to dial"

dialer-group 1

async mode interactive

keepalive 10 3

fair-queue 64 16 0

ppp authentication chap

!

interface Dialer1

no ip address

no cdp enable

This has worked for me.

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