I am using a CISCO ASA 5505 and would like to set up NAT/ACL to allow traffic directed to our public IP 71.x.x.202 to be redirected to the IP of our Exchange server 192.x.x.250, to send and receive email as well as have access to OWA.
I am able to access the Internet through the ASA just fine, but have not had any success in setting up the incoming rules. Keeps receiving the errors like that when I try to set up the rules myself.
2 Nov 12 2008 09:37:01 106001 x.x.x.219 71.x.x.202 Inbound TCP connection denied from x.x.x.219/1264 to 71.x.x.202/80 flags SYN on interface outside
The only rule pertaining to the Exchange server that I have set up is the following.
access-list inside_access_in extended permit tcp host 192.x.x.250 any eq smtp
Would prefer instructions for ASDM, but CL will do as well.