[Server-devel] questions about using Wireshark to monitor the Mesh

Bryan Berry bryan.berry at gmail.com
Sun Mar 2 22:15:38 EST 2008

Thanks john, I will try out the commands you sent.

where can I download the newest build of the XS? I can't find it at
xs-dev.laptop.org or dev.laptop.org

We're hoping to get a working version of the XS by the end of this week.
Our pilot starts soon (April 13) and we want to get the XS working
sooner rather than later.

May I suggest bundling XFCE4 w/ the XS. I have installed it on my XS and
it eases working w/ wireshark and other aspects of testing. At least for
folks like myself that are less than expert w/ the command line.

thanks again for your help John


On Sun, 2008-03-02 at 10:52 -0500, John Watlington wrote:
> Those RPMs are already patched.   What the patches allow are:
> support for mesh link layer messages (RREQ,PREQ, RREPLY, etc.)
> and decoding our new non-standard mesh multicast packets.
> That version doesn't dig into the telepathy packets.   I have a
> patch from collabora that should do that, but haven't applied
> and tested it yet.   I'll get it out ASAP (the patch is attached).
> IPv6 is turned off on recent school server builds.    It breaks
> installations with more than a single school server --- see the
> trac ticket for details (sorry no number, I'm offline).  mDNS is
> shown fine by the patched version, but should be turned off in
> a school server environment.
> In order to see all frames (and not just those containing IP packets),
> you have to bring up a special interface on the mesh driver (bringing
> down the regular one.)
> On servers with one wired ethernet interface, type:
> ifconfig eth1 down
> ifconfig msh0 down
> On servers with two wired ethernet interfaces, type:
> ifconfig eth2 down
> ifconfig msh0 down
> Then, on all types of servers, type:
> echo 7 > /sys/class/net/eth2/lbs_rtap
> ifconfig rtap0 up
> Now point wireshark at rtap0 instead of msh0 to see more packets.
> The number echoed into lbs_rtap is a bit field indicating which frame
> types you want to see.
> I believe this is documented at http://wiki.laptop.org/go/Wireless
> Cheers,
> wad

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