From: Florian Zumbiehl <[EMAIL PROTECTED]>
Date: Sun, 4 Mar 2007 03:30:00 +0100

> I noticed that the PPPoE code doesn't allow session id 0x0000 to be used
> for an actual session but rather considers 0 a special value denoting
> that the socket is unbound. Now, when reading RFC 2516, I couldn't really
> find anything that would forbid 0x0000 as a session id. Only 0xffff "is
> reserved for future use and MUST NOT be used", while 0x0000 is specified
> as the only allowed value for the session id field on certain types of
> packets, but neither can I find any statement that forbids 0x0000 as
> an ordinary session identifier, nor can I find any reasons that would
> prevent PPPoE from functioning properly with a session id of 0x0000.
> 
> Does anyone of you see any reason why a server would not be allowed to
> select 0x0000 as the session id for a PPPoE session?

I can't, feel free to provide a patch to remove this limitation
if it's important to you.
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