[Nottingham] Odd behaviour in KDE

[Iain Lennon]

The wlan-ng site is at http://www.linux-wlan.org/ with links to the mailing 
lists (both user and developer) from there.

On Thursday 21 Aug 2003 13:23, Lee wrote:
> Great, glad you solved your problem.... :-))
>
> Yeah, I'd love to have a look at the configuration/web site link just in
> case I come across the same problem, does it only happen when using WEP,
> or are we talking about any kind of fragmentation in 802.11b? I think
> this case just goes to show the tcp will work over two cups and bit of
> string where as stuff that relies on udp you have to have much 'cleaner'
> connection......interesting problem ....interesting indeed.
>
> well, there all packets at the end of the day...
>
>
> no more getting with the Ill Behaviour...
>
> Laters,
> Lee
> 'Will fix networks for food'
>
> On Thu, 2003-08-21 at 10:54, Iain Lennon wrote:
> > Solution:
> >
> > 	Wireless network using WEP takes normal network packets, wraps them with
> > its own encryption and then fragments the encrypted data as needed to
> > transmit wirelessly.
> > I needed to set the driver on the server to assemble all the fragmented
> > WEP packets before decypting them.
> >
> > its a setting in the wlancfg file which doesn't seem very well
> > documented. A passing comment in the wlan-ng forum gave the clue..
> >
> >
> > I think thats it working all right now.
> > Thacnks for your help.
> >
> > Iain
> >
> > On Wednesday 20 Aug 2003 16:15, Lee wrote:
> > > hmmm, I think we are getting closer to the problem, run etherreal on
> > > this segment?, or tcpdump, try setting your MTU to a smaller value
> > > (512) or less, see if this stop's the fragmentation, but 1500 mtu on
> > > ethernet or wireless ethernet should be fine and dandy really, I bet
> > > there is something fishy going on with the wireless driver, perhaps
> > > it's churinging/managaling packets, and the machine is misinterpting
> > > that as a smaller mtu on that segment? weird. I can't really fix this
> > > problem without doing 'my thing' with my tools, but..I'll try..
> > >
> > > hmm.. or you could look at it like this..
> > >
> > > Back again with the renegade master
> > > D-4 Damager, Power to the people,
> > > Back again, with the ill behavior
> > >
> > > yeah, your network has some of this ill behaviour that wildchild spoke
> > > about... but he's dead.. so he can't helpup with your fragmentation..
> > >
> > > send some netstat -r -n , whats you mtu???
> > >
> > > on a ethernet lan, with one segment, and no routers and default mtu of
> > > 1500 , you should never see layer 3 fragmentation of packets at any
> > > time, so.... dig deeper my friend., check that your wireless segment
> > > maxium packet size is correct (at your access point/ wireless
> > > card?)....
> > >
> > > it could be a drivers problem..need more info..
> > >
> > > interesting problem, aint mtu's fun...
> > >
> > > why is snort running?? on a workstation??? bizzare-o-matic?
> > >
> > > Laters,
> > > Lee
> > > 'Will work for food'
> > >
> > >
> > > 88> http://mailman.lug.org.uk/mailman/listinfo/nottingham
> > >
> > >
> > >
> > >
> > > _______________________________________________
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> > >
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> >
> > --
> > Iain Lennon
> > SpR Emergency Medicine
> > Mid Trent Rotation
> >
> > _______________________________________________
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>
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-- 
Iain Lennon
SpR Emergency Medicine
Mid Trent Rotation