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Re: STP problem [7:70797] posted 06/19/2003
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Networks. Not only is it a switch, patterned after an Ethernet switch, but
it also supposedly solves the problem of rogue wireless access points.

See these recent articles from 802.11 Planet and the San Jose Mercury News:

http://www.80211-planet.com/news/print.php/1572381

http://www.siliconvalley.com/mld/siliconvalley/news/local/6106092.htm

Priscilla


The Road Goes Ever On wrote:
> 
> "" Riley""  wrote in message
> news:200306171828.h5HISOiR005700@xxxxxxxxxxxxxxxxx
> > What an interesting scenario!  If I understood your message
> correctly, the
> > network picture is something like this:
> >
> >
> >   Wired Network -----Cat---------Wireless Network
> >                              |----User----|
> >
> > Your problem is that the user is bridging the wired and
> wireless (and so
> is
> > the Cat), which means there are two functioning links
> (bridges) between
> the
> > wireless and wired.
> >
> > Your real problem is even if you track this user down and
> beat them
> severaly
> > with an AP antenna until his MCSE falls on the floor,this
> problem is going
> > to repeat itself with the next user who has a similar
> wired/wireless card.
> >
> > Sooooo...it's a long day and I can't think of the specific
> commands or
> > syntax or what I had for lunch, but configure the cat port
> that the
> wireless
> > AP is connected to to make it the root bridge such that it
> will always
> beat
> > the **** out of any wanna be bridges, thus ensuring that the
> rogues block.
> >
> > Sorry, can't be more specific than this, but my brain is
> frazzled so right
> > now, I think STP is something you put in your car...but maybe
> it will help
> > with your problem...
> >
> > HTH anyway,
> >
> > Charles
> 
> nice to see you here again, Charles. Where you been keeping
> yourself?  :->
> 
> I like your layout. Like the other guy said, though, I'm not
> sure a Windoze
> machine would bridge between these tow interfaces. Of course, I
> ould be
> wrong. It could also be that the integrated ethernet / wirelss
> card is
> broken for wahtever reason. Nothing would surprise me  I put in
> a Linksys
> wireless network here at home, and put my wife and the kids on
> the wireless.
> My wife's laptop has a PCMCIA nic and a built in ethernet port.
> wonder if I
> could get her off the internet long enough to let me try a test
> or two.
> she's really loving being able to sit on the back deck and
> cruise. :->
> 
> don't be such a stranger, guy.
> 
> >
> >
> > ""Christopher Dumais""  wrote in message
> > news:200306171652.h5HGqcPJ022176@xxxxxxxxxxxxxxxxx
> > > Hi all,
> > > We are having an STP problem where we think a user with an
> integrated
> > > wireless and LAN NIC is creating a bridge loop and bringing
> down the
> > entire
> > > network. The problem occurs then goes away after 20 or so
> minutes unless
> > we
> > > can narrow down which closet it is coming from and reboot
> the switch.
> All
> > of
> > > our management tools die during the outage. Does anyone
> have any ideas
> on
> > > how we might prevent this from happening or track down the
> offender? We
> > have
> > > 6509's in our Core and a mix of 3548's and 3550-SMI. Any
> thoughts are
> > > appreciated. Thanks!
> > >
> > > Chris Dumais, CCNP, CNA
> > > Sr. Network Administrator
> > > NSS Customer and Desktop Services Team
> > > Maine Medical Center
> > > (207)871-6940
> > > dumaic@xxxxxxx
> 
> 




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