I would think this is simple, but I cannot figure it out:
I want to set up a rule that forwards all SMTP traffic on IP address xxx.xxx.xxx.xxx (our firewall's IP) to our Exchange server at IP address yyy.yyy.yyy.yyy so that it can respond to handshake requests. I know that this is a NAT rule, but I cannot figure out how to do it. I would prefer do it in the ASDM interface as I am a visual person.
So basically I want all outside traffic that is calling port 25 on xxx to go to port 25 on yyyy. I don't want any any ports on xxx touched as that is our main internet IP.
Please let me know