Ted Dawson
New Member
- Joined
- Mar 18, 2021
- Messages
- 8
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Greetings,
I am working at migrating from our SonicWall (old Gen5) to an OPNsense router/firewall (new OPNsense 21.7.2_1-amd64). I'm having trouble getting the 3CX firewall checker to run without failures. The main problem appears to be with source NAT. The errors all take the form of "testing port x... Mapping does not match x. Mapping is y. (How to resolve?)".
On the SonicWall, the solution was to navigate to Network | NAT Policies, edit the outbound NAT Policy for the 3CX PBX, and check Disable Source Port Remap on the Advanced tab.
The corresponding setting in OPNsense appears to be under Firewall | NAT | Outbound. I have set hybrid mode for NAT rule generation, and I have a rule for all network traffic from the 3CX PBX with Static port set to Yes.
This appears to agree with the information I have found online, but the 3CX firewall checker is still unhappy. Grateful for any suggestions.
Thanks,
Ted
I am working at migrating from our SonicWall (old Gen5) to an OPNsense router/firewall (new OPNsense 21.7.2_1-amd64). I'm having trouble getting the 3CX firewall checker to run without failures. The main problem appears to be with source NAT. The errors all take the form of "testing port x... Mapping does not match x. Mapping is y. (How to resolve?)".
On the SonicWall, the solution was to navigate to Network | NAT Policies, edit the outbound NAT Policy for the 3CX PBX, and check Disable Source Port Remap on the Advanced tab.
The corresponding setting in OPNsense appears to be under Firewall | NAT | Outbound. I have set hybrid mode for NAT rule generation, and I have a rule for all network traffic from the 3CX PBX with Static port set to Yes.
This appears to agree with the information I have found online, but the 3CX firewall checker is still unhappy. Grateful for any suggestions.
Thanks,
Ted
Phone System 