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CAN I USE 2 NAT PUBLIC ADDRESS FOR ONE PRIVATE ADDRESS ???

Posted on 2011-11-01
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Last Modified: 2012-05-12
I use a cisco PIX to NAT private IP addresses to public addresses. My boss has asked if it is possible to assign two NAT Public addresses to one private address where a different tcp port may determine which NAT address is used, is this possible on a PIX firewall or a ASA appliance ???

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Question by:s1mwat
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jmeggers earned 1000 total points
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Yes, you should be able to do that.  You'll want to use a route-map with ACLs that match on port.  I'll try to dig up an example.
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by:s1mwat
ID: 37063429
Thanks if you could dig up some examples would be great
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by:jmeggers
ID: 37063448
Sorry, I was thinking IOS.  Shouldn't require a route-map, only ACLs.  I haven't tested this out myself but try something like:

access-list NAT1 permit tcp host 10.1.1.10 any eq 53
access-list NAT2 permit tcp host 10.1.1.10 any eq 80

nat (inside) 10 access-list NAT1
nat (inside) 10 access-list NAT2

global (outside) 10 150.10.10.1
global (outside) 11 150.10.10.2
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