Is it possible to configure route-maps on an interface and route only specific incoming traffic (e.g smtp packets)to a specific destination and leave all else as default?
If I create an access-list that defines smtp traffic and apply it to a route-map and then onto an interface, I believe it would route all smtp traffic to that IP no matter which direction it is coming from.
It's possible, and there are a few different ways to do it depending on how your network is set up. If you're policy routing out an interface that will change state to 'down' upon a failure (e.g., a point-to-point circuit such as a T1), policy routing can detect the interface going down and either a) switch to a backup next-hop if you've configured more than one (e.g., set ip next-hop 18.104.22.168 22.214.171.124), or b) revert to standard destination-based routing if only a single next-hop is configured.
I don't think this will accomplish what you want, but I may not be understanding you completely. If you can post the relevant config portions along with what you're trying to do, it may clear things up.
Unfortunately I am unable to get a copy of the configurations at the moment. I will post it up when I do.
I actually need an email server to be active at all times. I have 1 main WAN link and 1 ISDN DDR link. Therefore my email server's internal IP needs to be NAT'd through both IP addresses depending on which link is up
Anyway to go through this using NAT? I can't seem to find it which is why i am looking at route maps
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