You need a unique address on each router, and another unique address
shared between routers for the standby ip. In total 3 addresses.
It would be a good idea to look at the below documentation before
implementing this configuration. Tracking interfaces or doing
load sharing may be beneficial depending on the whole configuration
of your network:
http://www.cisco.com/cpress/cc/td/cpress/ccie/ndcs798/nd2022.htm
Mary Smith wrote:
>
> I have 2 routers . Router B is set up for Hot Standby
> Router A is 2524, Router B is 2620:
>
> Router A configuration:
> .
> .
> int e0
> ip address 209.49.216.241 255.255.255.248
> standby 1 ip 209.49.216.245
> standby 1 preempt
> standby 1 priority 110
> no ip directed-broadcast
> !
> int s0
> ip address 206.181.61.66 255.255.255.252
> encapsulation ppp
> no fair-queue
> .
> .
> .
>
> Roouter B configuration:
>
> .
> .
> int f0/0
> ip address 209.49.216.245 255.255.255.248
> standby 1 ip
> standby 1 preempt
> no ip directed-broadcast
> !
> int s0/0
> ip address 206.181.61.66 255.255.255.252
> encapsulation ppp
> no fair-queue
> .
> .
>
> My questions are:
> (1). Is the above configuration correct ?
> (2). If router A go down, router B should up instantly
> ?
> (3). Can I use sam serial ip address on both router ?
>
> Thanks
>
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