Any comment or response? Or you have solutions?
_____
From: [email protected] [mailto:[email protected]] On Behalf Of
JeffreyHo
Sent: Thursday, February 04, 2010 1:07 PM
To: [email protected]
Subject: [P2PSIP] question about the Attach request in the Joining
Procedurefor a peer who is behind symmetric NAT
Importance: High
Dear all,
I have a question about the Joining procedure for a peer who is behind
symmetric NAT.
Per the specification from RELOAD base (step 3 in the sec. 9.4),
JP SHOULD send Attach requests to initiate connections to each of the
peers in the neighbor table ...
Before sending an Attach request, it has to prepare all IP candidates via
ICE including the Relay-reflexive candidate obtained from a TURN Server. A
peer can get the TURN Server information on the P2P RELOAD Overlay through
TURN Usage. So I suppose the joining behavior in order below,
Joining Peer -> Connection to Bootstrap Peer -> Ping -> Fetch TURN Usage
(obtain TURN Server) -> ICE -> Attach Request -> ....
The problem is how an un-joining peer fetches the TURN Usage from the
overlay, it is even not part of the RELOAD chord ring. That means it can't
send the Attach request, then it can't join the overlay. It seems deadlock
here? Or I have something wrong on such understanding?
I think this question could be also addressed as "how can an un-joining peer
find the TURN Server over the overlay?"
Any comment and answer will be appreciated.
Thanks a lot in advance.
BR,
Jeffrey
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本信件可能包含工研院機密資訊，非指定之收件者，請勿使用或揭露本信件內容，並請銷毀此信件。
This email may contain confidential information. Please do not use or disclose
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