[c-nsp] NAT Translation ques..

[Church, Chuck]

NAT misses are normal.  A packet that needs to be translated, and for
which a current translation doesn't exist, will be considered a miss,
and a translation is created.  If your misses were higher or close to
your number of hits, I'd be suspicious of a worm or something like that.
But your ratio looks pretty normal. 


Chuck Church
Network Engineer
CCIE #8776, MCNE, MCSE
Multimax, Inc.
Enterprise Network Engineering
Home Office - 864-335-9473 
Cell - 864-266-3978
cchurch at multimax.com

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Christian Koch
Sent: Thursday, December 28, 2006 1:14 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] NAT Translation ques..

Can someone explain to me what causes NAT Misses? There seem to be an
awful lot and they are incrementing

thanks

#sh ip nat statistics
Total active translations: 28 (13 static, 15 dynamic; 15 extended)
Outside interfaces:
  Serial0/0.5, Serial0/0.7
Inside interfaces:
  FastEthernet0/0
Hits: 4148  Misses: 67
Expired translations: 0
Dynamic mappings:
-- Inside Source
[Id: 1] access-list 1 pool remote refcount 15
 pool remote: netmask 255.255.255.240
        start 10.10.10.91 end 10.10.10.91
        type generic, total addresses 1, allocated 0 (0%), misses 0
#
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