Cisco Systems rephrased: 2621 nat pool

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Subject Author Date
rephrased: 2621 nat pool Henry Cabot Henhouse III 09-22-05
Posted by Henry Cabot Henhouse III on September 22, 2005, 8:14 pm
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Hi --

On the eth side, we nat to a 10.0.0.0 range. The pool consists of about
100 external IPs 208.x.x.x.

How can we 1. log which external ip the router assigns to a 10.0.0.0 ip and
2. how can we lookup which internal 10.0.0.0 ips are using which external
ips?

Thanks in advance,
Dave



Posted by Anthrax on September 22, 2005, 10:57 pm
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On 9/22/2005 7:14 PM, Henry Cabot Henhouse III wrote:

> Hi --
>
> On the eth side, we nat to a 10.0.0.0 range. The pool consists of about
> 100 external IPs 208.x.x.x.
>
> How can we 1. log which external ip the router assigns to a 10.0.0.0 ip and
> 2. how can we lookup which internal 10.0.0.0 ips are using which external
> ips?
>
> Thanks in advance,
> Dave
>
>

I'm not sure if there's any other way but...

1) if you are doing a debug ip nat and you have the log turned on the
translation will appear there. However that will be impractical since
the debug will use a lot of resources and may cause eventually an
undesirable effect in the router.

2) Show ip nat translation and use the grip | include to fetch
individually the translations of the ip addresses you want.


--
2nd Law of Thermodynamics: Chaos will Reign.
///////////////////
--Anthrax--
////////////////// #end

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