[c-nsp] cisco ip nat question

joshd jduffek at gmail.com
Fri Nov 10 14:36:29 EST 2017

Unless I'm reading this wrong you just need a basic interface overload
config...something like this:

int eth0/0
!interface traffic sources from
ip nat inside
int eth0/1
!interface going to devices without gateway
ip nat outside
ip nat inside source list NATDIS interface eth0/1 overload
ip access-list extedned NATDIS
 permit ip source.network.address.0 dest.net.address.0

(hopefully that is right).


On Fri, Nov 10, 2017 at 1:16 PM, Mike <mike-cisconsplist at tiedyenetworks.com>

> On 11/09/2017 06:10 PM, Aaron Gould wrote:
>> You may be able to accomplish it with proxy arp and not have to nat
>> I recall proxy arp will allow hosts to arp for everything, and the router
>> to arp reply to any and all arps on the subnet with its own mac address
>> -Aaron
> My stupid dumb devices can't do that either. I need to do source nat so
> that all packets directed at these devices appear to have the source ip of
> the router itself.
> Mike-
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