Hello Guys,
So I just did a static NAT on a Cisco ASA 5515-x to an MS Exchange server but it is not responding.
I have two IPs from my service provider. E.G 1.1.1.1 and 1.1.1.2
1.1.1.1 is assigned too my outside interface. I am trying to NAT 1.1.1.2 to my mail server which has an internal (host IP) of 172.16.x.x.
Please see config below;
object network Exchange_Server
nat (INSIDE,outside) static 1.1.1.2 service tcp 25 25
access-group ExchangeServerOutsideIn in interface outside
access-list ExchangeServerOutsideIn extended permit tcp any host 172.16.x.x
Is there anything more to be done please?
When I try to point the Exchange Server DNS to 1.1.1.2, it does not identify it. Neither can I ping 1.1.1.2 from the internet.
Kindly assist.
