Robert Mortimer wrote:
I have a set of 6 public IP addresses
I set up pfSense with an internal IP in the 10.0.0.x range and use an
external IP
All is good except I can not port forward to my mailserver or webserver.

I have been to the Firewall: NAT: Port Forward tab and set up the port
forward (including the addition of the firewall rule)

In NAT I see the following

IF  Proto  Ext. port range   NAT IP                 Int. port range
Description
WAN TCP    80 (HTTP)         10.0.0.10              25 (SMTP)
Mailserver
                             ext.: 80.176.108.60)

I hope you've done some mistake during copy&paste, otherwise your problem is that if you forward external port 80 to internal port 25, then your SMTP server is reachable on the non-standard port 80 from the outside.

Another problem may come form the topology of your network. If I understand correctly, you have a WAN segment with a /29 address (ie. 5 available IPs plus the default gateway - the ADSL router). In this situation the real IP assigned to your pfSense is the only one reachable by default. You can, of course, tell the router to forward packets with a destination of one of the other 4 IPs: just add the respective ProxyARP Virtual IPs entries in pfSense.

Hope this helps,
Angelo Turetta

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