Re: One "record" per datagram when the "use_srtp" extension is in effect

[Eric Rescorla <ekr@xxxxxxxxxxxxxxxxxxxx>]

At Sun, 13 Jan 2008 15:35:36 +0100,
=?ISO-8859-2?Q?Martin_Vladi=E6?= wrote:
> 
> 
> Hi,
> 
> I have a question for the authors of draft-ietf-avt-dtls-srtp. In
> section 4.1 of this draft it states:
> 
> "When the "use_srtp" extension is in effect, implementations MUST NOT
> place more than one "record" per datagram. (This is only meaningful
> from the perspective of DTLS because SRTP is inherently oriented
> towards one payload per packet, but is stated purely for
> clarification.)"
> 
> For what reason implementations must not place more than one "record"
> per datagram?

We want to preserve the one RTP packet in one RTP packet out semantics
of SRTP.

-Ekr