Fedora:<br>Linux abcde 2.6.11-1.1369_FC4 #1 Thu Jun 2 22:55:56 EDT 2005 i686 i686 i386 GNU/Linux<br><br><br>Asterisk: 1.2.4<br><br>SIP Problem<br><span style="font-weight: bold;">1. Asterisk sends SIP messages to Softphone.
<br>2. Softphone receives SIP messages and replys back.<br>3. Asterisk doesn't receive these replies and keeps on sending.<br></span><br><span style="font-weight: bold;">Asterisk:</span><br>Reliably Transmitting (no NAT) to
<a href="http://192.168.1.4:5060">192.168.1.4:5060</a>:<br>OPTIONS sip:<a href="http://192.168.1.4">192.168.1.4</a> SIP/2.0<br>Via: SIP/2.0/UDP <a href="http://192.168.1.10:5060">192.168.1.10:5060</a>;branch=z9hG4bK17299c89;rport
<br>From: "asterisk" <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>>;tag=as1ab4b0c6<br>To: <sip:<a href="http://192.168.1.4">192.168.1.4</a>><br>Contact: <<a href="mailto:sip:asterisk@192.168.1.10">
sip:asterisk@192.168.1.10</a>><br>Call-ID: <a href="mailto:2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10">2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10</a><br>CSeq: 102 OPTIONS<br>User-Agent: Asterisk PBX<br>Max-Forwards: 70
<br>Date: Fri, 17 Feb 2006 07:13:32 GMT<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY<br>Content-Length: 0<br><br><br>---<br>Retransmitting #1 (no NAT) to <a href="http://192.168.1.4:5060">192.168.1.4:5060
</a>:<br>OPTIONS sip:<a href="http://192.168.1.4">192.168.1.4</a> SIP/2.0<br>Via: SIP/2.0/UDP <a href="http://192.168.1.10:5060">192.168.1.10:5060</a>;branch=z9hG4bK17299c89;rport<br>From: "asterisk" <<a href="mailto:sip:asterisk@192.168.1.10">
sip:asterisk@192.168.1.10</a>>;tag=as1ab4b0c6<br>To: <sip:<a href="http://192.168.1.4">192.168.1.4</a>><br>Contact: <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>><br>Call-ID: <a href="mailto:2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10">
2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10</a><br>CSeq: 102 OPTIONS<br>User-Agent: Asterisk PBX<br>Max-Forwards: 70<br>Date: Fri, 17 Feb 2006 07:13:32 GMT<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
<br>Content-Length: 0<br>vicidial3*CLI><br><br>---<br>Retransmitting #2 (no NAT) to <a href="http://192.168.1.4:5060">192.168.1.4:5060</a>:<br>OPTIONS sip:<a href="http://192.168.1.4">192.168.1.4</a> SIP/2.0<br>Via: SIP/2.0/UDP
<a href="http://192.168.1.10:5060">192.168.1.10:5060</a>;branch=z9hG4bK17299c89;rport<br>From: "asterisk" <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>>;tag=as1ab4b0c6<br>To: <sip:
<a href="http://192.168.1.4">192.168.1.4</a>><br>Contact: <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>><br>Call-ID: <a href="mailto:2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10">2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10
</a><br>CSeq: 102 OPTIONS<br>User-Agent: Asterisk PBX<br>Max-Forwards: 70<br>Date: Fri, 17 Feb 2006 07:13:32 GMT<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY<br>Content-Length: 0<br>vicidial3*CLI>
<br><br>---<br>Retransmitting #3 (no NAT) to <a href="http://192.168.1.4:5060">192.168.1.4:5060</a>:<br>OPTIONS sip:<a href="http://192.168.1.4">192.168.1.4</a> SIP/2.0<br>Via: SIP/2.0/UDP <a href="http://192.168.1.10:5060">
192.168.1.10:5060</a>;branch=z9hG4bK17299c89;rport<br>From: "asterisk" <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>>;tag=as1ab4b0c6<br>To: <sip:<a href="http://192.168.1.4">
192.168.1.4</a>><br>Contact: <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>><br>Call-ID: <a href="mailto:2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10">2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10
</a><br>CSeq: 102 OPTIONS<br>User-Agent: Asterisk PBX<br>Max-Forwards: 70<br>Date: Fri, 17 Feb 2006 07:13:32 GMT<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY<br>Content-Length: 0<br>vicidial3*CLI>
<br><br>---<br>Retransmitting #4 (no NAT) to <a href="http://192.168.1.4:5060">192.168.1.4:5060</a>:<br>OPTIONS sip:<a href="http://192.168.1.4">192.168.1.4</a> SIP/2.0<br>Via: SIP/2.0/UDP <a href="http://192.168.1.10:5060">
192.168.1.10:5060</a>;branch=z9hG4bK17299c89;rport<br>From: "asterisk" <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>>;tag=as1ab4b0c6<br>To: <sip:<a href="http://192.168.1.4">
192.168.1.4</a>><br>Contact: <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>><br>Call-ID: <a href="mailto:2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10">2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10
</a><br>CSeq: 102 OPTIONS<br>User-Agent: Asterisk PBX<br>Max-Forwards: 70<br>Date: Fri, 17 Feb 2006 07:13:32 GMT<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY<br>Content-Length: 0<br>vicidial3*CLI>
<br><br>---<br>Destroying call '<a href="mailto:2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10">2285e5551ca492cf6d3f6a8f52949df7@192.168.1.10</a>'<br><br><br><span style="font-weight: bold;">Softphone:<br></span><br><br>RECEIVE TIME: 7187271
<br>RECEIVE << <a href="http://192.168.1.10:5060">192.168.1.10:5060</a><br>OPTIONS sip:<a href="http://192.168.1.4">192.168.1.4</a> SIP/2.0<br>Via: SIP/2.0/UDP <a href="http://192.168.1.10:5060">192.168.1.10:5060</a>
;branch=z9hG4bK26e7bd24;rport<br>From: "asterisk" <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>>;tag=as6f689e4c<br>To: <sip:<a href="http://192.168.1.4">192.168.1.4</a>><br>
Contact: <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>><br>Call-ID: <a href="mailto:273bfefe49de465562068a8f587715d8@192.168.1.10">273bfefe49de465562068a8f587715d8@192.168.1.10</a><br>CSeq: 102 OPTIONS
<br>User-Agent: Asterisk PBX<br>Max-Forwards: 70<br>Date: Fri, 17 Feb 2006 07:18:12 GMT<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY<br>Content-Length: 0<br><br><br>RECEIVE TIME: 7188270<br>RECEIVE <<
<a href="http://192.168.1.10:5060">192.168.1.10:5060</a><br>OPTIONS sip:<a href="http://192.168.1.4">192.168.1.4</a> SIP/2.0<br>Via: SIP/2.0/UDP <a href="http://192.168.1.10:5060">192.168.1.10:5060</a>;branch=z9hG4bK26e7bd24;rport
<br>From: "asterisk" <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>>;tag=as6f689e4c<br>To: <sip:<a href="http://192.168.1.4">192.168.1.4</a>><br>Contact: <<a href="mailto:sip:asterisk@192.168.1.10">
sip:asterisk@192.168.1.10</a>><br>Call-ID: <a href="mailto:273bfefe49de465562068a8f587715d8@192.168.1.10">273bfefe49de465562068a8f587715d8@192.168.1.10</a><br>CSeq: 102 OPTIONS<br>User-Agent: Asterisk PBX<br>Max-Forwards: 70
<br>Date: Fri, 17 Feb 2006 07:18:12 GMT<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY<br>Content-Length: 0<br><br><br>RECEIVE TIME: 7189270<br>RECEIVE << <a href="http://192.168.1.10:5060">192.168.1.10:5060
</a><br>OPTIONS sip:<a href="http://192.168.1.4">192.168.1.4</a> SIP/2.0<br>Via: SIP/2.0/UDP <a href="http://192.168.1.10:5060">192.168.1.10:5060</a>;branch=z9hG4bK26e7bd24;rport<br>From: "asterisk" <<a href="mailto:sip:asterisk@192.168.1.10">
sip:asterisk@192.168.1.10</a>>;tag=as6f689e4c<br>To: <sip:<a href="http://192.168.1.4">192.168.1.4</a>><br>Contact: <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>><br>Call-ID: <a href="mailto:273bfefe49de465562068a8f587715d8@192.168.1.10">
273bfefe49de465562068a8f587715d8@192.168.1.10</a><br>CSeq: 102 OPTIONS<br>User-Agent: Asterisk PBX<br>Max-Forwards: 70<br>Date: Fri, 17 Feb 2006 07:18:12 GMT<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
<br>Content-Length: 0<br><br><br>RECEIVE TIME: 7190270<br>RECEIVE << <a href="http://192.168.1.10:5060">192.168.1.10:5060</a><br>OPTIONS sip:<a href="http://192.168.1.4">192.168.1.4</a> SIP/2.0<br>Via: SIP/2.0/UDP <a href="http://192.168.1.10:5060">
192.168.1.10:5060</a>;branch=z9hG4bK26e7bd24;rport<br>From: "asterisk" <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>>;tag=as6f689e4c<br>To: <sip:<a href="http://192.168.1.4">
192.168.1.4</a>><br>Contact: <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>><br>Call-ID: <a href="mailto:273bfefe49de465562068a8f587715d8@192.168.1.10">273bfefe49de465562068a8f587715d8@192.168.1.10
</a><br>CSeq: 102 OPTIONS<br>User-Agent: Asterisk PBX<br>Max-Forwards: 70<br>Date: Fri, 17 Feb 2006 07:18:12 GMT<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY<br>Content-Length: 0<br><br><br>RECEIVE TIME: 7191269
<br>RECEIVE << <a href="http://192.168.1.10:5060">192.168.1.10:5060</a><br>OPTIONS sip:<a href="http://192.168.1.4">192.168.1.4</a> SIP/2.0<br>Via: SIP/2.0/UDP <a href="http://192.168.1.10:5060">192.168.1.10:5060</a>
;branch=z9hG4bK26e7bd24;rport<br>From: "asterisk" <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>>;tag=as6f689e4c<br>To: <sip:<a href="http://192.168.1.4">192.168.1.4</a>><br>
Contact: <<a href="mailto:sip:asterisk@192.168.1.10">sip:asterisk@192.168.1.10</a>><br>Call-ID: <a href="mailto:273bfefe49de465562068a8f587715d8@192.168.1.10">273bfefe49de465562068a8f587715d8@192.168.1.10</a><br>CSeq: 102 OPTIONS
<br>User-Agent: Asterisk PBX<br>Max-Forwards: 70<br>Date: Fri, 17 Feb 2006 07:18:12 GMT<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY<br>Content-Length: 0<span style="font-weight: bold;"><span style="font-weight: bold;">
<br></span></span>