[c-nsp] Cisco IP nat question

[Mike]

I have a 7201 connected to network 172.16.144.0/20, and it's interface 
is 172.16.144.1 (gi0/1.9999 for example). I was wondering how I might 
arrange things so that any source address -> inbound to 172.16.144.0/20 
is natted with a source address of 172.16.144.1? The clients are dumb 
and default route doesn't work for them (they have multiple and can't 
pick the right one), so sourcing all traffic FROM 172.16.144.1 would let 
me talk to them all. I do not care about the other direction, just inbound.

Thank you.

Mike-