Hairpin nat for a test environment
Currently trying to setup a test system and am struggling to make it work
We have 2 asterisk servers behind the firewall. In order to simulate a production environment, we want them to communicate over the eternal ip's.
Tried port forwarding and 1:1 NAT but no traffic. Turned on pure nat, also no joy.
I suspect that this is a hairpin NAT problem in that we want the traffic to go out via the wan interface, then back in to the other server. (both have virtual external IP's)