ISDN Backup for Serial WAN using IRB - 1841 router

Unanswered Question
Oct 26th, 2008


We have 2 sites linked by a serial leased line and have been recommended to replace a 1603 router pair with an 1841's, but would like to check if the desired configuration is possible.

We are using Bridge IRB to provide a flat network across the 2 sites but I've seen a previous post stating that ISDN doesn't support that configuration...

Does anyone know if that's correct ?

If we can achieve ISDN backup with Bridge IRB, where could I find out how to configure that ?

Otherwise, can anyone suggest an alterative configuration to achieve ISDN backup to serial link on a flat network ?

Many Thanks

I have this problem too.
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philipcase Tue, 11/04/2008 - 05:18

Thank you Guiseppe,

That link was useful.

I'm not sure which way we're going to go yet.


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