Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Two Leased lines in single router

Hi ,

I have 2 leased lines terminating to cisco 2620 router (s0/0, s0/1). the first line is connected to ISP1 and another one is connected to ISP2. The default route is pointing to ISP1 i.e s0/0. I configured static routes for some specific hosts which points ISP2 as gateway for example,

ip route s0/1

How can I do a redundant route if the second line goes down?. I given another route pointing through s0/0 with administrative distance 110 ( ip route s0/0 110).

But its not working. Can any one help me to work around this..?

Thanks in Advance


New Member

Re: Two Leased lines in single router

all the host should point to eth int of the router. give 2 static default routes pointing to serial interfaces one w/ less preference having a higher metric; ip route s0/0 and ip route s0/1 20. Once the serial interface of the prefered ISP (s0/0 in this case) goes down, router will start forwarding packets to alternative one... you can check this by sh ip ro since the default route w/ lower metric (1 in this case) will be active till the s0/0 is down.