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New Member

Route-map command explanation

Command explanation -----

We are connected to two ISP through same router.

GW1 is for first ISP and GW2 is for other.

**************** config***********************

ip nat inside source list 125 interface serial0/1 overload

route-map ABC permit 10

match ip address 125

set ip default next-hop GW1 GW2


Now if the GW1 is down then traffic should go through GW2.But because of NAT statment it is getting translated with down ISP public address.So we are not able to get internet.

If we change the NATing with working ISP ( We have cleared all NAT translation after chaning nat statement ) still it doesn't work?????? It seems in route-map it is not able to detect GW1 status.

Now my question is for what pupose we can set more than one Gateway in route-map? and is there any way to solve this problem ?

route-map ABC permit 10

match ip address 125

match interface serial 0/1

set ip default next-hop GW1 GW2

what "match interface " command will do in above route-map statemenet?

Actually we trying to achieve Load sharing with redundancy between two ISPs.

And we wanna do it without the use of any extra hardware box and BGP?

Is it possible to do that?

Thanks ,

  • Other Network Infrastructure Subjects
New Member

Re: Route-map command explanation

Hi Sachin

Please do specify the model of the router to be more specific in the area of providing 2 service providers.

This would be required for more information on the ISP and the NATing details and be more specific to the closure of the problem.

Kinldy revert in case you have clarifications.

Best Regards


New Member

Re: Route-map command explanation

Model of router is 3620.To be more specific I need to have Load sharing with redundancy i.e. Some of traffic lets say X i am sending to ISP1 and some of traffic Y , i m sending to ISP2. Now whichever ISP's link fails , traffic of that link should be redirected to other link automatically and it should be restored automatically once link comes up.

I hope i have cleared my problem.



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