[tram] Errata 3467 on RFC 6062
Magnus Westerlund <magnus.westerlund@ericsson.com> Tue, 02 June 2020 13:47 UTC
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From: Magnus Westerlund <magnus.westerlund@ericsson.com>
To: "behave@ietf.org" <behave@ietf.org>, "tram@ietf.org" <tram@ietf.org>
Thread-Topic: Errata 3467 on RFC 6062
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Date: Tue, 02 Jun 2020 13:47:31 +0000
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Subject: [tram] Errata 3467 on RFC 6062
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Hi, This is a question related to this RFC errata: https://www.rfc-editor.org/errata_search.php?eid=3467 The Errata says the following: Section 5.2. says: Otherwise, the server MUST initiate an outgoing TCP connection. The local endpoint is the relayed transport address associated with the allocation. It should say: Otherwise, the server MUST initiate an outgoing TCP connection. This connection MUST NOT be made using the relayed transport address associated with the allocation. Notes: if you send connect request using the allocated port then port the will not be in listen mode and this will prevent incoming tcp connection on this port. this will cause major problem while doing ice check. The effect is so bad that it may cause 97% call failure while using turn tcp behind nat. ---- End of Errata --- So I think this errata is wrong and should be rejected for that reason. To my understanding there are no significant issue with having the TURN server at the point of allocation request occurring opening a TCP socket listener on particular relayed transport address (address1: port1). When the connection request occurs the TURN server will reuse the address1:port1 as source address and port for the outgoing TCP connection to the remote address, using a specific 5-tuple connected TCP socket. Thus, the reporters issue should not occur. I appreciate feedback on this so that I don't make a mistake. Thanks Magnus Westerlund TSV AD
- [tram] Errata 3467 on RFC 6062 Magnus Westerlund
- Re: [tram] [BEHAVE] Errata 3467 on RFC 6062 Magnus Westerlund