RE: [Simple] MSRP connection problem
wangxiao <wangsmile@huawei.com> Tue, 16 August 2005 12:49 UTC
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Date: Tue, 16 Aug 2005 20:49:28 +0800
From: wangxiao <wangsmile@huawei.com>
Subject: RE: [Simple] MSRP connection problem
In-reply-to: <42FCDDA8.6030409@cisco.com>
To: 'Paul Kyzivat' <pkyzivat@cisco.com>, 'Stallman' <zodist@gmail.com>
Message-id: <000001c5a260$f0ab5e90$b2b04c0a@china.huawei.com>
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Hi, Paul I think of your meams is that relay is a proxy used to transmit the message. The user behind a NAT,he can connect relay which provides service for him. Because of use TCP,so connect relay successful,both relay and user can send data cross NAT. But there has another problem,MSRP uses INVITE and its response to exchange SDP(offer/answer).The INVITE how to cross NAT?( whether or not the user must use TCP to receive INVITE?) Thanks Thank for Sean Wang -----Original Message----- From: simple-bounces@ietf.org [mailto:simple-bounces@ietf.org] On Behalf Of Paul Kyzivat Sent: Saturday, August 13, 2005 1:35 AM To: Stallman Cc: simple@ietf.org Subject: Re: [Simple] MSRP connection problem I'm responding to simple too because maybe others want to discuss this. If you were behind a residential NAT, you might need to use the services of a relay out in the open internet - maybe its a free one, or maybe you have to contract for service. If you are in an enterprise, you probably have your own relay in the DMZ. Either way, it works because you can connect to it, and it is in a place where it can both make and receive connections. It sounds like you may not have seen the MSRP relay draft.It is draft-ietf-simple-msrp-relays-05.txt. Paul Stallman wrote: > the real thing is there are many PC clients use NAT access to Internet. > they can not control the NAT policy, > does there need a relay and how to initial connection, > can you give me an example,? Thanks in advanced. > > > On 8/12/05, *Paul Kyzivat* <pkyzivat@cisco.com > <mailto:pkyzivat@cisco.com>> wrote: > > If Alice is in such a situation, then her UA should be configured to use > an MSRP relay that may be accessed thru the firewall. > > Paul > > Stallman wrote: > > hello, everyone. > > > > I occur an hard problem with MSRP session. > > > > I act as a conference server, I INVITE alice join my conference, > > but alice behind a firewall or alice in a private network, > > how can connect to alice ? > > > > > > -- > > _______________________________ > > Reply mail in one business day. > > Email: zodist@gmail.com <mailto:zodist@gmail.com> <mailto: > zodist@gmail.com <mailto:zodist@gmail.com>> > > > > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > Simple mailing list > > Simple@ietf.org <mailto:Simple@ietf.org> > > https://www1.ietf.org/mailman/listinfo/simple > > > > > -- > _______________________________ > Reply mail in one business day. > Email: zodist@gmail.com <mailto:zodist@gmail.com> _______________________________________________ Simple mailing list Simple@ietf.org https://www1.ietf.org/mailman/listinfo/simple _______________________________________________ Simple mailing list Simple@ietf.org https://www1.ietf.org/mailman/listinfo/simple
- [Simple] MSRP connection problem Stallman
- Re: [Simple] MSRP connection problem Paul Kyzivat
- Re: [Simple] MSRP connection problem Paul Kyzivat
- RE: [Simple] MSRP connection problem wangxiao
- Re: [Simple] MSRP connection problem Paul Kyzivat