Ethereal-dev: Re: [ethereal-dev] Re: Null headers and decoding

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From: Guy Harris <gharris@xxxxxxxxxxxx>
Date: Sun, 5 Dec 1999 23:33:21 -0800
> I had even put "wan" in the file names so I'm sure I was looking at
> the right captures.  A quick look via altavista didn't turn up any
> documentation on SLE's format, although I think it's a form of HDLC.

If so, that's not what he was seeing - he had just 0xFF followed by
0x00, and nothing that resembled an xDLC control field, such as 0x03
(Unnumbered Information, which is typically the type of xDLC frame in
which IP datagrams travel).