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SubjectRe: peeking with tokenring on linux laptop
> From owner-linux-kernel-outgoing@vger.rutgers.edu Tue Jan  7 10:45 MET 1997
> From: Keith Owens <kaos@ocs.com.au>
> To: "Marty Leisner" <leisner@sdsp.mc.xerox.com>
> Cc: tcpdump@ee.lbl.gov, linux-kernel@vger.rutgers.edu,
linux-laptop@vger.rutgers.edu
> Subject: Re: peeking with tokenring on linux laptop
> Mime-Version: 1.0
> Date: Sat, 04 Jan 1997 16:47:20 +1100
>
> On Fri, 3 Jan 1997 14:28:48 PST,
> "Marty Leisner" <leisner@sdsp.mc.xerox.com> wrote:
> >I want to use tcpdump to peek at a token ring network (running
> >primarily netbeui and ipx) with linux 2.0.27 on a laptop...
> >
> >Ethernet works fine, I'm not sure I under what Link encap: UNSPEC
> >means on tr0...
> >
> >How do I read tr0 on tcpdump?
>
> AFAIK, tcpdump does not support token ring. You will have to hack
> libpcap and tcpdump to add the support, recommend you start with the
> latest versions from ftp://ftp.ee.lbl.gov, they now officially support
> Linux. I hacked previous version of tcpdump (3.0.2) to add support for
> PLIP, patches mailed to Marty as an example of what needs to be
> changed.
>
>
It shouldn't be too hard, given that FDDI uses the same frame format as token ring

Clemens

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