[Linphone-users] Bugreport: Invalid use of CRLF as keep alive on UDP con

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[Linphone-users] Bugreport: Invalid use of CRLF as keep alive on UDP con

From:	Mikael Magnusson
Subject:	[Linphone-users] Bugreport: Invalid use of CRLF as keep alive on UDP connection
Date:	Mon, 10 Sep 2012 20:27:59 +0200
User-agent:	Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120827 Thunderbird/15.0

Linphone 3.3.2 sends UDP packets of length 4, containing double CRLFassume as keep alive method. These are invalid SIP packets, since adouble CRLF is only ignored by a SIP server when received overconnection oriented transport protocols like TCP and STCP.

An alternative keep alive method should be used instead, preferablyOPTIONS when needed.


http://tools.ietf.org/html/rfc5626#section-3.5.1

Regards,
Mikael

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