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NAT on Cisco ASA

Posted on 2014-02-17
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Last Modified: 2014-02-18
HI

I have to nat entries on my asa firewall.

Nat (inside,outside) source static pc_01 interface
Nat (inside,outside) source static pc_02

Object network pc_01
host 192.168.1.1
Object network pc_02
host 192.168.1.2

Only one nat entire works at a time basically the first entry.
How can I make both work?
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Question by:ciscosupp
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4 Comments
 
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Expert Comment

by:ffleisma
ID: 39866196
basically you are statically NATing pc_01 to outside interface IP, which is one is to one NAT translation. that is why the second one is not working. use dynamic NAT

Try the following:

no nat (inside,outside) source static pc_01 interface
no nat (inside,outside) source static pc_02

nat (inside,outside) source dynamic pc_01 interface
nat (inside,outside) source dynamic pc_02 interface
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Author Comment

by:ciscosupp
ID: 39866496
Thanks it works but does the Nat statement still mean only 192.168.1.1 and 192.168.1.2 is nated to outside. Please advice
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Accepted Solution

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ffleisma earned 2000 total points
ID: 39866979
yes it means, only both 192.168.1.1 and 192.168.1.2 are NATed to the ouside interface IP.

If you need the entire subnet 192.168.1.x/24, it would look something like this.

object network obj_192.168.1.0-24
 subnet 192.168.1.0 255.255.255.0

nat (inside,outside) source dynamic obj_192.168.1.0-24 interface

let me know if this helps or if you need something different.
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Author Closing Comment

by:ciscosupp
ID: 39867008
thanks perfect :-)
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