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NAT Two external IP's to one internal SMTP server on ASA 8.4

Hi Guys

I hope you can help, i have a situation with one of my exisiting clients. They have two external IP addresses and one internal SMTP server.

Can you please advice whats best to configure a dynamic NAT solution for such a scenario.

many thanks

Upen Desai

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Hall of Fame Super Blue

Re: NAT Two external IP's to one internal SMTP server on ASA 8.4

Upen

Do you want a dynamic NAT or a static NAT ?

If it is dynamic then outside hosts will not be able to initiate connections to your mail server. Is this what you want ?

Jon

New Member

NAT Two external IP's to one internal SMTP server on ASA 8.4

Hello Jon

Yes i was thinking of using dynamic NAT, but if there is a solution via static then would like to learn about that as well.

many thanks

Hall of Fame Super Blue

Re: NAT Two external IP's to one internal SMTP server on ASA 8.4

Upen

This is the static configuration where the public IPs are 195.10.10.1 and 195.10.10.2 and the SMTP private address is 192.168.5.1 -

object network PublicIPs
host 195.10.10.1
host 195.10.10.2

object network SMTP_local
host 192.168.5.1

nat (inside,outside) static PublicIPs

Not sure how or whether it can be done dyanamically but i woudl have thought you wanted a static anyway ?

Jon

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