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cisco 1800 series wan fail on two ethernet(two different isp)

i have cisco 1812  router with two ethernet port for wan link termination..i need failover (just like utm/firewall) on my router...if possible..please share the configuartion
1 Solution

If you have two WAN links for active / passive failover, there are two possible solutions:

Using static route: you can configure static routes to the same destination. The preferred route will have a lower Administrative Distance (AD) and the least preferred or backup route, will have a much higher AD.

Using the offset command: here you increment the AD of the backup route within the definition of a routing process.

see also: http://www.experts-exchange.com/Hardware/Networking_Hardware/Routers/Q_26922999.html

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