Subject: [sipcore] RFC4028 : Ambiguous in 8.1. Processing of Requests

From: OKUMURA Shinji <[email-masked]>
Date: Fri, 3 Jul 2020 16:28:42 +0900

Hi,

=====================================================================
8.1.  Processing of Requests

    A proxy MUST NOT insert a Min-SE header
    field or modify the value of an existing header field in a proxied
    request if that request contains a Supported header field with the
    value 'timer'.  This is needed to protect against certain denial of
    service attacks, described in Section 11.
=====================================================================

I'm suggesting amending the 1st sentence, but also the meaning of the 2nd sentence is unclear.
ISTM the reason is not described in Section 11.

Does anyone know the reason?

Regards,
Shinji