nanog mailing list archives

Re: Marriott wifi blocking


From: Jay Ashworth <jra () baylink com>
Date: Fri, 03 Oct 2014 23:53:36 -0400

No problem, Hugo. 

In fact, if you paid for Wired service and plugged your own router in, you would still be creating your own network, 
and not pretending to be the hotel's network. At the RF layer. 

So it would not be legal for them to zap that either. Doing so might /violate your agreement for the wired internet/, 
but that's a problem up in layer 10...

(People, money, lawyers)

On October 3, 2014 11:45:48 PM EDT, Hugo Slabbert <hugo () slabnet com> wrote:
Jay,

Thanks; I think I was stretching this a bit far beyond just the
Marriott 
example.  Killing hotspots of completely discrete networks "because
$$$" 
is heinous.  I had extended this to e.g.:

1.  Hotel charges for either wired or wireless access per device and
has 
network policies to that effect.
2.  Guest pays for a single device and hooks up an AP or AP/NAT combo
to 
the wired port.
3.  User piggybacks multiple devices on that device's WLAN.

...to try to flesh out the scenarios.  In the attempt I went a bit far 
off the reservation.  Apologies for the noise.

--
Hugo

On Fri 2014-Oct-03 23:32:39 -0400, Jay Ashworth <jra () baylink com>
wrote:

Hugo, I still don't think that you have quite made it to the
distinction that we are looking for here.

In the case of the hotel, we are talking about an access point that
connects via 4G to a cellular carrier. An access point that attempts to
create its own network for the subscribers devices. A network disjoint
from the network provided by the hotel or its contractor.

This is a different case from the circumstance in a business office
where equipment is deployed to prevent someone from walking in with an
access point /which pretends to be part of the network which the office
runs./

In the latter case, the security hardware is justified in
deassociating people from the rogue access point, /because it is
pretending to be part of a network it is not authorized to be part of/.

In the Marriott case, that is not the circumstance. The networks which
the deauth probes are being aimed at are networks which are advertising
themselves as being /separate from the network operated by the hotel/,
and this is the distinction that makes Marriott's behavior is
unacceptable.

(In my opinion; I am NOT a lawyer. If following my advice breaks
something, you get to keep both pieces.)

On October 3, 2014 11:04:08 PM EDT, Hugo Slabbert <hugo () slabnet com>
wrote:
On Fri 2014-Oct-03 19:45:57 -0700, Michael Van Norman <mvn () ucla edu>
wrote:

On 10/3/14 7:25 PM, "Hugo Slabbert" <hugo () slabnet com> wrote:

On Fri 2014-Oct-03 17:21:08 -0700, Michael Van Norman
<mvn () ucla edu>
wrote:

IANAL, but I believe they are.  State laws may also apply (e.g.
California
Code - Section 502).  In California, it is illegal to "knowingly
and
without permission disrupts or causes the disruption of computer
services
or denies or causes the denial of computer services to an
authorized
user
of a computer, computer system, or computer network."  Blocking
access to
somebody's personal hot spot most likely qualifies.

My guess would be that the hotel or other organizations using the
blocking tech would probably just say the users/admin of the rogue
APs
are not authorized users as setting up said AP would probably be in
contravention of the AUP of the hotel/org network.

They can say anything they want, it does not make it legal.

There's no such thing as a "rogue" AP in this context.  I can run an
access point almost anywhere I want (there are limits established by
the
FCC in some areas) and it does not matter who owns the land
underneath.
They have no authority to decide whether or not my access point is
"authorized."  They can certainly refuse to connect me to their
wired
network; and they can disconnect me if they decide I am making
inappropriate use of their network -- but they have no legal
authority
to
interfere with my wireless transmissions on my own network (be it my
personal hotspot, WiFi router, etc.).  FWIW, the same is true in
almost
all corporate environments as well.

Thanks; I think that's the distinction I was looking for here.  By
spoofing deauth, the org is actively/knowingly participating on *my
network* and causing harm to it without necessarily having proof that
*my network* is in any way attached to *their network*.  The
assumption

in the hotel case is likely that the WLANs of the "rogue" APs they're
targeting are attached to their wired network and are attempts to
extend
that wireless network without authorization (and that's probably
generally a pretty safe assumption), but that doesn't forgive causing
harm to that WLAN.  There's no reason they can't cut off the wired
port

of the AP if it is connected to the org's network as that's their
attachment point and their call, but spoofed deauth stuff does seem
to
be out of bounds.

I'm not clear on whether it runs afoul of FCC regs as it's not RF
interference directly but rather an (ab)use of higher layer control
mechanisms operating on that spectrum, but it probably does run afoul
of
most "thou shalt not harm other networks" legislation like the
California example.


/Mike



--
Hugo

-- 
Sent from my Android phone with K-9 Mail. Please excuse my brevity.

-- 
Hugo

-- 
Sent from my Android phone with K-9 Mail. Please excuse my brevity.


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