Policy Based Routing With Backup Internet Connection

[imranraheel]

I have 2 Internet connections over my 1841 router , 1 is terminated over the serial link and the other one over the ethernet link where as the 2nd ethernet port is for internal network. I want to implemet policy based routing so when ever some one tries to access any perticular IP he is routed through the 2nd internet connection also i want to know is there any way to shift the circuit automatically when the primary circuit ges down.

[Thotsaphon Lueangwattanaphong]

Imran,

First of all just define the traffic you want to send each link. Also add a backup link for them.

After that just do the following link to beat NAT problems.

Please check this link out.

http://www.cisco.com/en/US/tech/tk648/tk361/technologies_configuration_example09186a0080950834.shtml

HTH,

Toshi

[Richard Burts]

Imran

If I am understanding your post correctly your primary Internet connection is the serial interface and the Ethernet connection is to be used as secondary/backup. If this is the case then a simple floating static default route using the Ethernet next hop should accomplish what you want.

Note that configuration of the Ethernet as a seconary/backup link is not necessarily related to what you configure for Policy Based Routing. The backup should operate independently from the PBR.

HTH

Rick