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Front-end/backend routers with redundancy

PerimeterIT asked
Last Modified: 2015-04-08
I need some advice building a redundant router setup for my lab.

I have a pair of Cisco 2811 routers for the front end and a pair of ASA 5520's to act as backend security appliances.

I need to setup the pairs of routers so they can failover to each other and completely remove single point of failure.

I'm using the builtin active/standby failover on the ASA's and HSRP on the 2811's at the moment.
But how do I wire them up, and how do I configure the routing so the devices can survive any single failure?
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