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RFC 6062, "Traversal Using Relays around NAT (TURN) Extensions for TCP Allocations", November 2010

Source of RFC: behave (tsv)

Errata ID: 3467

Status: Reported
Type: Technical

Reported By: Nazmus Shakeeb
Date Reported: 2013-01-22

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.

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