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Dual Internet in different offices - Routing Questions

So, we now have 2 offices with large Internet Connections. Users currently get to the Internet through the main office using the default route. They cannot get to it through the other office yet.

My original thought was to create a non-default route statements that negated the RFC 1918 addresses.

ie. Route every thing except 192.168, 10. and 172.16 to Firewall1 with a cost of 100.

Route every thing except 192.168, 10. and 172.16 to Firewall2 with a cost of 200.

Is this possible ? If not, what is the best practice to make this happen. I'm looking for a gentle nudge in the right direction.

Thanks,

Justin

1 REPLY

Re: Dual Internet in different offices - Routing Questions

You could filter the default route from the other site at each site. Local default route should then take precedence. That prevents any failover though. You could adjust the metric of the other sites default route to something higher with a route map. PBR should work too, but I would use that as a last resort. What IGP are you using?

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