Re: [Sip-implementors] Determining UDP Connection to use for a SIP response

2008-01-31 Thread Dale . Worley
From: "Amit P. Ahuja" <[EMAIL PROTECTED]> Considering the behavior of UAS-2, my question is: whether any SIP standard suggests guidelines on whether it is advisable to send out responses from a UDP port which is different from the one on which the request was received? RFC 3261 - 18

Re: [Sip-implementors] Determining UDP Connection to use for a SIP response

2008-01-30 Thread Ivar Lumi
No for UDP protocol("udp") and same IP:port should be used, why ? Most NATs are "port restricted cone" NAT, so they won't allow traffic in from the end point to where you haven't send data. 라스토기 wrote: >>Considering the behavior of UAS-2, my question is: whether any SIP >> standard suggest

Re: [Sip-implementors] Determining UDP Connection to use for a SIP response

2008-01-30 Thread 라스토기
>Considering the behavior of UAS-2, my question is: whether any SIP > standard suggests guidelines on whether it is advisable to send out responses > from a UDP port which is different from the one on which the request was > received? RFC 3261 - 18.2.2 Sending Responses only talks about the

[Sip-implementors] Determining UDP Connection to use for a SIP response

2008-01-30 Thread Amit P. Ahuja
Hello List Members, Following is the scenario on which my question is based: 1> UAC-1 sends a REGISTER request using UDP from source port 20,000 to UAS-2 at destination port 5060. 2> UAS-2 responds back with a 200 OK to above request from UDP source port 30,000 to destination port 20,000.