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We have a site where we have a cisco 2911 router.

Said router has BDSL provided over ethernet and a 3G-HWIC for redundancy.

At the moment this is manually failed over in the event of a BDSL outtage, which is far from ideal.

Can anyone suggest the best way to failover from one to the other?

At present I have to put the following statement into the config:

ip route 0.0.0.0 0.0.0.0 dialer1

This causes issues when the BDSL comes back up online as we are using RIP... the default route gets redistributed to the rest of our sites and takes them down as all traffic tries to pump out one 3G card!

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I'm fairly certain you can use a route map to prevent redistribution of specific routes. (I'm making this a comment because I don't have time to fully research this right now and make it a fully fleshed-out answer...) –  Evan Anderson Feb 12 '12 at 22:39
    
Pretty sure this is going to give some love, will report back: ciscofun.blogspot.com.au/2011/06/… –  Lance Feb 12 '12 at 22:40
    
Yep. I'm doing that in a couple of sites. Works fine, though you will still have a route redistribution problem I suspect. –  Evan Anderson Feb 12 '12 at 22:48
    
Evan, route maps for stopping the redistribution, object tracking and policy-based routing for the fail over :) –  Lance Feb 12 '12 at 22:59
    
Sounds like a good combination. –  Evan Anderson Feb 12 '12 at 23:05

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