How to access OWA from within internal network (IPTABLES!)

Hi Folks,

Scenario as follows;

Company network (192.168.0.0/24) natted behind a debian Linux box. The company has an exchange server with outlook web access (OWA) with a live IP of: 123.123.123.123. (Dummy IP of course)

When external users hit 123.123.123.123, OWA works fine. (Iptables prerouting rule)

Internal users cannot. I also have this problem with a Citrix access gateway. (Internal users can ping the external IP, but not connect to it).

What IPBTABLES rules would I need to somehow redirect/allow internal users to go out the firewall on the internal interface, then BACK IN on the external interface??

CheersStart Free Trial