NAT query

Unanswered Question
Sep 22nd, 2009

I need to set up NAT on a Router to hide all incoming internet Source Addresses behind 1 given Static Address depending

on the Destination Address of the packet.

The same incoming Source Addresses heading for a different

Destination Address, will also need to be allocated a different Static Address.

Is this feasible?

Any ideas gratefully received.


I have this problem too.
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Jon Marshall Tue, 09/22/2009 - 07:38


Depends on your inside and outside interfaces. If the interface that connects to the internet side is configured with "ip nat outside" (which is the most common case) then no you can't do this on a router. There is no option on a router to overload ie. PAT coming outside to inside.

With a pix/asa firewall however this is a trivial thing to do.



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