[c-nsp] Limit on maximum number of NATs

Riccardo S dim0sal at hotmail.com
Wed Apr 10 07:53:53 EDT 2013

Sorry, didn't catch you.

Is there an official number for the available memory for NAT on ISR ?

Today I see the following:

3925E#sh ip nat statistics 
Total active translations: 2669 (354 static, 2315 dynamic; 2315 extended)
Peak translations: 21739, occurred 7w0d ago
Outside interfaces:
Inside interfaces: 
Hits: 4059853116  Misses: 0
CEF Translated packets: 4050190207, CEF Punted packets: 9662996
Expired translations: 60127030
Dynamic mappings:

Total doors: 0
Appl doors: 0
Normal doors: 0
Queued Packets: 0

Since this is a very sensitive equipment, I'd like to have a feedback to understand if I have to think to replace it.


Date: Wed, 10 Apr 2013 11:47:16 +0200
Subject: Re: [c-nsp] Limit on maximum number of NATs
From: alumbis at gmail.com
To: dim0sal at hotmail.com
CC: cisco-nsp at puck.nether.net

I don't know if there is an official number but you are limited by available memory for NAT on ISRs (+ISR-G2).

On Wed, Apr 10, 2013 at 9:48 AM, Riccardo S <dim0sal at hotmail.com> wrote:

Which is the current

limit in the maximum number of static natting on Cisco 3925 platform ?

Any official reference

on cisco.com ?



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