Configure Dial Backup 1811 ISR

[helpthisuser]

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.

[drolemc]

I am attaching the Cisco Wireless ISR and HWIC Access Point Configuration Guide please go thought it get your solution.

http://www.cisco.com/application/pdf/en/us/guest/products/ps5853/c2001/ccmigration_09186a008067e9b6.pdf

[slayerhawk]

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.