[c-nsp] cisco ip nat question

Nick Cutting ncutting at edgetg.com
Thu Nov 9 19:17:19 EST 2017

There is more to it.

What is the model and code version of the router? - we need these to help you with the configuration.

-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Mike
Sent: Thursday, November 9, 2017 6:50 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] cisco ip nat question

This message originated outside of your organisation.


     I have a bunch of dumb devices that don't know how to deal with a default gateway. They all live in a subnet

     A router lives here @, and my device management station lives on another network, say

     What I think I want, is for packets going from my management station to the dumb devices to be source ip natted so that they appear to come from the router itself, so that any devices on the network that can't understand default gateway, can at least respond since the source address they will see will be the router itself and within their same subnet.

     How would this be accomplished? Is it as simple as putting 'ip nat inside' on the interface facing the dumb devices? Or is there more to it?

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