[c-nsp] Using NAT with servers and dual ISP

[Brett Looney]

> My consfusin is handling inbound connections to the customer servers.
> I can define inbound static mappings but how do the packets that the 
> server sends in response make it way through the router and avoid
> going out the wrong interface.

Although it is a bit of a hack, one way of doing this is to put a second IP
address on the server in question and NAT to that address on the second
inbound service instead. That way you can identify the packets.

B.