Multi-homing with two routers to one ISP

Hey guys,

I have the following situation
- 2 locations
- one ISP
- each location has a firewall as exit point, with on the inside on layer 2
connectivity between the two locations, and on the outside each firewall
has a directly connected link to an ISP router
- each location has its own IP subnet on the directly connected link to the
ISP router
- as each firewall is directly connected to its ISP router, there is no
routing; just a default route from the firewall
- on the inside there is EIGRP

Currently there is no redundancy set between the two locations.

Since there is no routing toward the ISP, how do I setup redundancy,
considering that from the inside there is a requirement to have a single IP
address to point to regardless of the exit location?

The ISP has setup an IP SLA / ICMP linked to HSRP to track if they can ping
our side.

Thanks for any input.

Marc

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Received on Mon Feb 06 2012 - 11:55:55 ART