ColMar

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I need a modem to get public IP. I can try another modem but the system is in a ptoduction environment and I can try thath only as last chance. I'm waiting rhe answare from TPLink support but... no asware yet.

in VoIP don't works Comment by ColMar May 2020
Yes, I have activated the log on the SIP Client and I can see that the user-agent is TP-Link, my modem/router. So I think that the problem is the router tp-link archer vr1210v, that intercept the SIP packets, but I have disabled firewall, ALG and put the zyxel WAN interface on DMZ, but nothing works :-(

in VoIP don't works Comment by ColMar May 2020
OK, I have captured the traffic from FIBRA2 (wan) and WLAN (local PBX TOGNAZZI), while the SIP client tries to connect and fails with 405 error. In the NAT, Voip Group Service have 4000-20000UDP. In the Policy, VoipIPFromE... contains the source public IP of the workstation with the SIP Client software. Thank-you

in VoIP don't works Comment by ColMar May 2020
SIP client cannot be registered 405 error sipserver.sirioinformatica.it on 5060 udp The Zyxel is behind a NAT router, but I can forward other tcp/udp service. The router has DMZ to Zyxel and no firewall enabled.

in VoIP don't works Comment by ColMar May 2020