NAT mail to new internal smart host

Unanswered Question

Hi all.


I have a PIX 515E. I have an old smart host server that I am retiring with an ip address of 172.17.2.50. I have built a new smart host server with an ip of 172.17.5.2.



My current working config on the pix is the following:


access-list 30 permit tcp any host 62.120.56.37 eq smtp

static (inside,outside) tcp 62.120.56.37 smtp 172.17.2.50 smtp netmask 255.255.255.255 0 0

nat (inside) 2 172.17.2.50 255.255.255.255 0 0


When I tried testing the new server, I just replaced the ip address of 172.17.2.50 with 172.17.5.3. Our mail flowed for about 10 email messages but then stopped.


Am I missing something?


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srue Wed, 04/15/2009 - 06:25
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no static (inside,outside) tcp 62.120.56.37 smtp 172.17.2.50 smtp netmask 255.255.255.255 0 0

static (inside,outside) tcp 62.120.56.37 smtp 172.17.5.2 smtp netmask 255.255.255.255 0 0


also, what is the purpose of the nat (inside) 2 statement..where is the 'global (outside) 2' statement?

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