Ethereal-dev: Re: [ethereal-dev] Capturing from a synchronous adapter card in linux

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From: Jochen Friedrich <jochen@xxxxxxxx>
Date: Sat, 2 Sep 2000 23:58:55 +0200 (CEST)
Hi Paul,

> From an ISND adapter, can I capture LAPD,and any B-channel traffic in
> linux? Or is like the normal ppp0 capture where I can see only the IP
> packets and up.

Normally, you only have the ippp0 device. However, for passive ISDN cards
(hisax driver), you can switch on full trace of both B and D channels and
get the data as hex dump from /dev/isdnctrl<x>.

Cheers,
Jochen