I'm using m0n0wall 1.33 generic PC. The firewall is blocking SIP
packets, no matter if I open port 5060 or forward it to my VoIP phone.
Firewall log entries look like that:
15:18:10.352452 bge0 @0:25 b <IP of VoIP provider>,5060 -> 10.3.0.2,5060
PR udp len 20 32 IN bad NAT
I found this resolved topic, where Manuel Kasper wrote he fixed it:
Is there something I'm doing wrong? Could it be the Broadcom NIC: