Hi, I have continuos and strange problem with SIP VoIP system, which consist of SER (sip express router) hosted by our provider, XTen client, and Grandstream hardware sip IP phone. The same software and hardware were successfully used by another people (unfortunately, they do not run shorewall, so I cannot ask them what to do). Our ShoreWall (www.shorewall.net) firewall machine is SuSE 9 Linux PC with 2 network cards (external static IP 62.85.100.103, static internal static IPs 192.168.0.xx, no dhcp). My config is based on two-interface sample from original shorewall rpm. ------------------- ---- interfaces ---- ------------------- net eth0 detect norfc1918,routefilter loc eth1 detect ------------- --- masq --- ------------- eth0 eth1 62.85.100.103 ------------ --- policy ---- ------------ loc net ACCEPT fw net ACCEPT fw loc ACCEPT net all DROP info # THE FOLLOWING POLICY MUST BE LAST all all REJECT info ------------- --- rules --- ------------ # SIP Client Ports ACCEPT loc net tcp 5060 5060 ACCEPT loc net udp 5060 5060 ACCEPT loc net udp 8000:8020 8000:8020 ACCEPT net loc tcp 5060 5060 ACCEPT net loc udp 5060 5060 ACCEPT net loc udp 8000:8020 8000:8020 ACCEPT net fw tcp 5060 5060 ACCEPT net fw udp 5060 5060 ACCEPT net fw udp 8000:8020 8000:8020 ----------------- nat - file is empty (left as is from two-interface sample). ---------------- SIP client like XTen uses 5060 tcp/udp to establish communications and 8000 - 8020 for voice transmission. The login to SIP server is OK. I can even hear another people who call me or whom calling I am. However, they do NOT hear me. Microphone is OK, verified. Anyone have an idea what I did wrong? Thanks in advance for any suggestion(s). ********************************************* * Best Regards --- Andrei Verovski * * Personal Home Page * http://snow.prohosting.com/guru4mac/ * Mac, Linux, DTP, Development, IT WEB Site *********************************************