[Serusers] tried everything, here's the debug info.

ngrep traffic, cfg file, sipsak Here's the ngrep traffic dump. bash-2.05b# ngrep -t port 5060 interface: sis0 (192.168.1.0/255.255.255.0) filter: ip and ( port 5060 ) # U 2005/07/17 01:24:44.312940 192.168.1.4:32775 -> 192.168.1.6:5060 OPTIONS sip:1234@192.168.1.6 SIP/2.0..Via: SIP/2.0/UDP asterisk1.local:3277 4;rport..From: sip:sipsak@asterisk1.local:32774;tag=444884a3..To: sip: 1234@ 192.168.1.6..Call-ID: 1145603235@asterisk1.local..CSeq: 1 OPTIONS..Contact: sip:sipsak@asterisk1.local:32774..Content-Length: 0..Max-Forwards: 0..User -Agent: sipsak 0.8.11..Accept: text/plain.... # U 2005/07/17 01:24:44.343055 192.168.1.6:5060 -> 192.168.1.4:32775 SIP/2.0 483 Too Many Hops..Via: SIP/2.0/UDP asterisk1.local: 32774;rport=327 75;received=192.168.1.4..From: sip:sipsak@asterisk1.local: 32774;tag=444884a 3..To: sip: 1234@192.168.1.6;tag=b42c293d3b69ef4e5d7c66dde268b4d8.c8d5..Call -ID: 1145603235@asterisk1.local..CSeq: 1 OPTIONS..Server: Sip EXpress route r (0.9.3 (i386/freebsd))..Content-Length: 0..Warning: 392 192.168.1.6:5060 "Noisy feedback tells: pid=8968 req_src_ip=192.168.1.4 req_src_port=32775 in_uri=sip:1234@192.168.1.6 out_uri=sip:1234@192.168.1.6 via_cnt==1".... # U 2005/07/17 01:24:44.344937 192.168.1.4:32775 -> 192.168.1.6:5060 OPTIONS sip:1234@192.168.1.6 SIP/2.0..Via: SIP/2.0/UDP asterisk1.local:3277 4;rport..From: sip:sipsak@asterisk1.local:32774;tag=4bd28762..To: sip: 1234@ 192.168.1.6..Call-ID: 1272088418@asterisk1.local..CSeq: 2 OPTIONS..Contact: sip:sipsak@asterisk1.local:32774..Content-Length: 0..Max-Forwards: 1..User -Agent: sipsak 0.8.11..Accept: text/plain.... # U 2005/07/17 01:24:44.346355 192.168.1.6:5060 -> 192.168.1.4:32775 SIP/2.0 404 Not Found..Via: SIP/2.0/UDP asterisk1.local: 32774;rport=32775;r eceived=192.168.1.4..From: sip:sipsak@asterisk1.local: 32774;tag=4bd28762..T o: sip: 1234@192.168.1.6;tag=b42c293d3b69ef4e5d7c66dde268b4d8.c8d5..Call-ID: 1272088418@asterisk1.local..CSeq: 2 OPTIONS..Server: Sip EXpress router (0 .9.3 (i386/freebsd))..Content-Length: 0..Warning: 392 192.168.1.6:5060 "Noi sy feedback tells: pid=8961 req_src_ip=192.168.1.4 req_src_port=32775 in_u ri=sip:1234@192.168.1.6 out_uri=sip:1234@192.168.1.6 via_cnt==1".... sipsak traceroute information: warning: IP extract from warning activated to be more informational 0: 192.168.1.6 (31.102 ms) SIP/2.0 483 Too Many Hops 1: 192.168.1.6 (2.381 ms) SIP/2.0 404 Not Found without Contact header