Track interface

[adhityakarthik]

Track interface

I have a router with two links

leased line as primary link and ADSL VPN as back up

Ihave a static route for primary and floating satic for adsl vpn

my question is how to remove staic routing when the primay link goes down and back up takes place

reg

Adhitya

[Giuseppe Larosa]

Hello Adhitya,

if the primary goes down and the interface is not up/up on the router the primary static is automatically removed and then later added when the link is restored.

However, if there is a problem in the provider network that makes the primary link useless but still up/up the static route is still there.

To cover this types of indirect failures you can take advantage of reliable static routing with object tracking

see

http://www.cisco.com/en/US/docs/ios/12_3/12_3x/12_3xe/feature/guide/dbackupx.html

this includes the usage of probes to test for example ip connectivity to DNS server in provider1 network and other possible tests.

the exact configuration is release dependent for the probes as you can see in the document.

Hope to help

Giuseppe