Hi All,<div><br></div><div>I&#39;ve been doing some testing against FreeSwitch 1.2.0 and noticed what looks like a bug.</div><div><br></div><div><div>root@Freeswitch&gt; version</div><div><br></div><div>FreeSWITCH Version 1.2.0-rc2+git~20120616T193227Z~068586f28f+unclean~20120618T093505Z</div>

</div><div><br></div><div><br></div><div>192.168.8.238 = Freeswitch</div><div>192.168.8.168 = <a href="http://proxyhost.test.net" target="_blank">proxyhost.test.net</a></div><div><br></div><div><br></div><div>A Client sends the following SUBSCRIBE to freeswitch</div>

<div><br></div><div><br></div><div><div>SUBSCRIBE <a href="mailto:sip%3A2001@proxyhost.test.net" target="_blank">sip:2001@proxyhost.test.net</a> SIP/2.0</div><div>Call-ID: <a href="mailto:2039516157894306129@192.168.8.168" target="_blank">2039516157894306129@192.168.8.168</a></div>

<div>Via: SIP/2.0/UDP 192.168.8.168:5070;branch=z9hG4bKC0A808A82E8652DB03</div><div>Via: SIP/2.0/UDP 192.168.8.168:5070;branch=z9hG4bKC0A808A82E8652DB11</div><div>To: <a href="mailto:sip%3A2001@proxyhost.test.net" target="_blank">sip:2001@proxyhost.test.net</a></div>

<div>CSeq: 1 SUBSCRIBE</div><div>Contact: &lt;sip:<a href="http://proxyhost.test.net:5060" target="_blank">proxyhost.test.net:5060</a>&gt;</div><div>From: <a href="mailto:sip%3A2001@proxyhost.test.net" target="_blank">sip:2001@proxyhost.test.net</a>;tag=1297284766*476741369860*990463165~476741369860~fmc.sar~</div>

<div>Content-Length: 0</div><div>Expires: 3600</div><div>Event: message-summary</div><div>Accept: application/simple-message-summary</div><div>Route: &lt;sip:192.168.8.238;lr&gt;</div><div>Max-Forwards: 69</div><div><br>
</div>
</div><div><br></div><div>FreeSwitch responds with:</div><div><br></div><div><br></div><div><div>SIP/2.0 202 Accepted</div><div>Via: SIP/2.0/UDP 192.168.8.168:5070;branch=z9hG4bKC0A808A82E8652DB03</div><div>Via: SIP/2.0/UDP 192.168.8.168:5070;branch=z9hG4bKC0A808A82E8652DB11</div>

<div>From: &lt;<a href="mailto:sip%3A2001@proxyhost.test.net" target="_blank">sip:2001@proxyhost.test.net</a>&gt;;tag=1297284766*476741369860*990463165~476741369860~fmc.sar~</div><div>To: &lt;<a href="mailto:sip%3A2001@proxyhost.test.net" target="_blank">sip:2001@proxyhost.test.net</a>&gt;;tag=9t8fu6DedmnQ</div>

<div>Call-ID: <a href="mailto:2039516157894306129@192.168.8.168" target="_blank">2039516157894306129@192.168.8.168</a></div><div>CSeq: 1 SUBSCRIBE</div><div>Contact: &lt;<a href="http://sip:2001@192.168.8.238:5060" target="_blank">sip:2001@192.168.8.238:5060</a>&gt;</div>

<div>Expires: 3600</div><div>User-Agent: FreeSWITCH-mod_sofia/1.2.0-rc2+git~20120616T193227Z~068586f28f+unclean~20120618T093505Z</div><div>Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE</div>

<div>Supported: timer, precondition, path, replaces</div><div>Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer</div><div>Subscription-State: active;expires=3600</div>

<div>Content-Length: 0</div><div><br></div><div>So I would expect subsequent NOTIFY messages to be send to the address &amp; port in the contact: sip:
<a href="http://proxyhost.test.net:5060" target="_blank">proxyhost.test.net:5060</a> (contact header from SUBSCRIBE)</div><div><br></div><div>However I do not see the NOTIFY requests arrive at sip:<a href="http://proxyhost.test.net" target="_blank">proxyhost.test.net</a> on port 5060, a wireshark trace on FreeSwitch says is sending them to a different port, port 33406 which is the port Freeswitch received the request on.</div>

<div><br></div><div><br></div><div>This is how the packet looks in WireShark:</div><div><br></div><div>Ethernet II, Src: 42:61:a8:ef:c3:de (42:61:a8:ef:c3:de), Dst: 96:cd:bb:a4:a4:2e (96:cd:bb:a4:a4:2e)</div><div>Internet Protocol Version 4, Src: 192.168.8.238 (192.168.8.238), Dst: 192.168.8.168 (192.168.8.168)</div>

<div>User Datagram Protocol, Src Port: sip (5060), Dst Port: 34406 (34406)  **Would expect this to be 5060**</div><div>Request-Line: NOTIFY sip:<a href="http://proxyhost.test.net:5060" target="_blank">proxyhost.test.net:5060</a> SIP/2.0</div>

<div><br></div><div>I thought this defect might be in the ball park:</div><div><br></div><div><a href="http://jira.freeswitch.org/browse/FS-4014?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel" target="_blank">http://jira.freeswitch.org/browse/FS-4014?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel</a>
</div><div><br></div><div><br></div><div>Anyone seen this?</div><div><br></div><div>To resolve I used TCP instead of UDP but wanted to flag it up to see if anyone else had seen it</div><div><br></div><div><br></div><div>
Regards</div><div><br></div><div>Steve P</div><div><br></div><div><br></div><div><br></div></div>
<div><br></div>

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