Static Policy Pat

Welcome back!

I had to blog this out mostly because its one of those things that I have done before but said to myself, “Huh?” when I came across it again.

So here is the short form:

I want to policy Static PAT so that when 10.2.2.2 telnets to the interface of the ASA it is redirected to 10.1.1.2.

You begin with the access-list:

access-list TELNET permit tcp host 10.1.1.2 eq 23 host 10.2.2.2

Initially thats what gets my mind spinning becuase its not the access-list to permit the traffic its the access-list to define the mapping for the static.  Here is the rest.

Define the static and tie it to the ACL:

static (i,o) tcp interface 23 access-list TELNET

Allow telnet in:

access-list OUTSIDE_IN permit tcp any any eq 23

access-group OUTSIDE_IN in int outside

That does it.  Strange huh?  Oh well! It works.

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