Routing table is not updating

[balbeer.singh84]

Hi,

I am using Cisco 2911 & IOS version is 15.1. My problem is that after some days (e.g. 15-20 days), the routing table suddenly stops updating & then I have to enter the default route again to make it up. I am using Track 1 to track default route here. After primary link goes down, the Track is also going down but after coming the primary link up, the track is not coming up. So, I have to add the default route again to make it up. Why it is happening? Please suggest.

-Ballu.

[cadet alain]

Hi,

how are you doing your IP SLA for tracking, post your config:

you should either use source-interface or put a host route to the tracked IP or use local PBR for the IP SLA

Regards.

Alain

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[AhmedSonba]

Hello Balbeer

Although if you posted an example of your configuration it would be easier to help you out , but let me try to see if I got you right.

Lets assume that you have the following configuration

ip route 0.0.0.0 0.0.0.0 1.1.1.1 track 1 " main route"

ip route 0.0.0.0 0.0.0.0 2.2.2.2 track 2 " Backup route"

and lets say track 1 is pointing to 8.8.8.8

while track 2 is pointing to 4.2.2.2

than you need to add the following

IP route 8.8.8.8 255.255.255.255  1.1.1.1

IP route 4.2.2.2 255.255.255.255  2.2.2.2

please refer to the following link for more infromation

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00806e880b.shtml

Hope it will help

Ahmed Sonba