Port Forwarding and Rules problem

[sasha]

Hi,

I have 2 WAN interfaces, WAN and OPT1.

When I create port forwarding from OPT1 port 25 to LAN IP port 25, if I choose add new related rule, rule is created but port is not opened in firewall. If for the same port forwarding I change instead of related rule to use pass option, then port forwarding works.

For me it is more obvious to use rules so I can easily see what firewall lets in then use pass option for port forwarding.

What am I doing wrong and why is not related firewall rule for OPT1 actually working as I expect?

Thanks