But in which manner is the routing loop creating itself..?...See, I change the weight to have preference over the higher route, I mean, I leave the higher weight one as the floating static route this way:

ip route 0.0.0.0 0.0.0.0 x.x.x.x

ip route 0.0.0.0 0.0.0.0 y.y.y.y 2

The lower weight route (x.x.x.x) is my preferable for outgoing traffic. But when mail is coming (incoming traffic) into y.y.y.y, it doesn?t find it...

Hector,

The second route will never be installed in the RIB as long as the first one is valid (i.e. next-hop x.x.x.x is resolvable).

Can you tell us a bit more about the purpose of that second route in regard to the mail application.

If you need to route traffic based on something other than destination IP address then the solution for you might be Policy based Routing (PBR).

For more information on how to configure PBR, please refer to the following link:

http://www.ciscotaccc.com/kaidara-advisor/iprout/showcase?case=K10313674

Hope this helps,

Harold, in effect I found a way to make PBR inside the firewall and left both static routes with the same weight. Everything worked. The purpose of the second route in regard to the mail application was (in fact is) that both routes are used to publish the mail server in the internet.

Thanks a lot

I have a similar problem. How did you resolve it?