NAT overload configuration -Backup

[prafuljaded]

Hi All,

My router have two internet T1s, s0 and s1, where s0 is used for internet traffic and s1 for VPN traffic using IPSec.We have NAT s0 overload configured. Is there any command maaybe using route-map option where I can fallback to S1 for both internet and VPN traffic in case s0 fails.

Thanks,

Praful

[spremkumar]

Hi

I have seen a similar situation and where we had a loopback interface configured with one /32 public ip and done the overloading over that.

with respect to routing is concerned u can have 2 defaults with and without admin distance (floating static route) to have the auto internet traffic fall back mechnaism to the second T1 when the first T1 goes down.

But u need to make sure that ur loopback is being routed properly on the both the links on the SP side too withtout that u will face problems in the return traffic to ur network...

regds