Hi!
When we receive NOTIFY messages, Sofia-SIP automatically answers correctly with a 200 OK. However, the OK should be sent to the address contained in the Via header according to RFC 3261 (section 18.2.2), but it currently seems to be sent to the IP and port from which the notification came. The Via does not contain "rport". Please see the attached Wireshark capture for a small example. The NOTIFY specifies "Via: SIP/2.0/udp 127.0.0.1:5082;branch=z9hG4bK4acf5ed2a2e6b85f252b78ac0b2d88ec" but the reply is sent by Sofia-SIP to the originating IP and port instead. Is there some fallback mechanism in case the Via specifies a IP:port that is unreachable or not open? Best regards, Björn Stenborg ----------------------------------------------------------------------------- Björn Stenborg Enea Teknikringen 8, 583 30 Linköping, Sweden Direct: +46 13 465 58 44 Mobile: +46 70 971 58 44 <mailto:bjorn.stenb...@enea.com> bjorn.stenb...@enea.com www.enea.se <http://www.enea.se/> www.enea.com <http://www.enea.com/> ----------------------------------------------------------------------------- Enea - Embedded for Leaders This message, including attachments, is CONFIDENTIAL. It may also be privileged or otherwise protected by law. If you received this email by mistake please let us know by reply and then delete it from your system; you should not copy it or disclose its contents to anyone. All messages sent to and from Enea may be monitored to ensure compliance with internal policies and to protect our business. Emails are not secure and cannot be guaranteed to be error free as they can be intercepted, amended, lost or destroyed, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message, which arise as a result of e-mail transmission. Anyone who communicates with us by email accepts these risks.
notify_response_not_to_via.pcap
Description: notify_response_not_to_via.pcap
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