Ethereal-dev: Re: [Ethereal-dev] Cisco undocumented comand for capturing IP packets

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From: Paul Ionescu <paul@xxxxxxxx>
Date: Mon, 16 Oct 2000 19:56:23 +0300
Ashok Narayanan wrote:

> I don't believe there is one. Internally we do use "debug ip packet"
> for some debugging scenarios, but if we want to capture or generate
> packets we have to boot a special internal image.
> 
> -Ashok
> 
> --- Asok the Intern ----------------------------------------

Hum, this sounds very interesting.

And booting such a special internal image, would allow to capture raw
data on some interface (WAN,LAN or whatsoever) and put that data on a
tftp/ftp/some server for future analysis ?

I am asking you this because I want to study the WAN/LAN protocols in
detail and I do not have money to buy a WAN protocol analyzer.
For instance, how should I capture raw HDLC/LAPD/FrameRelay/a.s.o
protocols for study ?