Port Forwarding Issue

[myzar495]

Hello, everyone!

I've been having a tough time getting port forwarding to work on OPNSense 20.7 and there's no obvious reason why.

Here's what I did:

1) Enabled Reflection for Port Forwards, 1:1, and Automatic outbound NAT for reflection


2) Created a Port Forward for TCP/UDP for a specified port: 48210, with Interface NAT, Destination WAN address, and Target IP as Internal IP (say: 192.168.1.211)


Now comes the fun part... Testing it with an external port checker. No luck  :'(


Now for some other information. My network structure involves several VLANS. Each has DHCP enabled. One of these is for OpenVPN, and whenever someone is on 192.168.200.0/24, it will route via the manual rule in NAT:Outbound to the OpenVPN Interface. Otherwise, it will use the automatic rules. Note that none of this should be relevant as I'm forwarding to 192.168.1.0.



The final bit of information I have is through watching the firewall itself via the label I made in the rule, with the rule pointing to the same one I made.


Here's the IN Nat Rule:

...and here's the OUT traffic from WAN:


Has anybody encountered something like this? I'm at a bit of a loss on why this would be failing. The only thing I'm noticing is that both of these firewall logs only show TCP Flags of S. Shouldn't there also be an A?

If anybody has any ideas, please let me know. I'm tearing my hair out here. I'd even be willing to pay if someone would be willing to help figure this out  :'(

[myzar495]

It turns out this works fine. It appears to be an issue with Windows Firewall and the app I was using to listen.

Thank you for reading. Take care!  ;)