Ethereal-dev: Re: [ethereal-dev] Another xdlc bug

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From: Olivier Abad <abad@xxxxxxxxxxxxx>
Date: Sun, 26 Sep 1999 10:46:09 +0200
On dim, sep 26, 1999 at 12:41:25 -0500, Gilbert Ramirez wrote:
> If you look at the packet trace I just sent out, you'll see another
> bug in frame 8. N(R) in LLC should be 112, but it's shown as 0.
> 
> The "is_extended" variable was not taken into account for information
> frames. This diff fixes that problem.
> 
> I'm no LLC expert; I'm reading up on it now. The "is_extended" variable
> is also ignored w/regard to the control field for Unnumbered Frames.

According to http://www.acacia-net.com/Clarinet/protocol.htm LLC
Unnumbered frames are not extended. Extended LAPB does the same : it
uses the extended frame structure for Information and Supervisory
frames, but not for Unnumbered frames.

Olivier
-- 
"Benson, you are so free of the ravages of intelligence"
		-- Time Bandits