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Cisco ASA 5506

Posted on 2016-09-27
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Last Modified: 2016-10-04
I have about 60 public ip's. How can I forward a port on an ASA using a different ip other than my public?

If my public is 172.16.1.25....this is also the ip assigned to my outside interface. I would like to have 172.16.1.26 forwarded to a server on my network.

Any ideas
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Question by:daise703
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Expert Comment

by:Jan Springer
ID: 41818810
Port forwarding tcp 25 (smtp):

NAT:

object network SERVER
 host 192.168.1.26
 nat (inside,outside) static 172.16.1.26


PORT FORWARD:

object network SERVER-SMTP
 host 192.168.1.26
 nat (inside,outside) static 172.16.1.26 tcp smtp smtp
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Author Comment

by:daise703
ID: 41818820
Do I need an ACL?
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Accepted Solution

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Jan Springer earned 500 total points
ID: 41818833
Yes, on the outside interface for any traffic permitted to that IP and port.

If you're using 8.3 and later (which you probably are with a 5506), then you refer to the object that has the inside IP address defined in your outside access list:

access-list outside extended permit tcp any object SERVER-SMTP eq 25
access group outside in interface outside
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Author Closing Comment

by:daise703
ID: 41829002
Thanks for all of your help.
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