Re: Marriott wifi blocking

2014-10-03 Thread Michael Van Norman

My reading of this is that these features are illegal, period. Rogue AP
detection is one thing, and disabling them via network or
administrative (ie. eject the guest) means would be fine, but
interfering with the wireless is not acceptable per the FCC regulations.

Seems like common sense to me. If the FCC considers this 'interference',
which it apparently does, then devices MUST NOT intentionally interfere.

I would expect interfering for defensive purposes **only** would be
acceptable.

What constitutes defensive purposes?

Since this is unlicensed spectrum, I don't think there is anything one has
a right to defend :)

/Mike




Re: Marriott wifi blocking

2014-10-03 Thread Michael Van Norman
On 10/3/14 3:44 PM, Lyle Giese l...@lcrcomputer.net wrote:


On 10/03/14 17:34, Michael Van Norman wrote:
 My reading of this is that these features are illegal, period. Rogue
AP
 detection is one thing, and disabling them via network or
 administrative (ie. eject the guest) means would be fine, but
 interfering with the wireless is not acceptable per the FCC
regulations.

 Seems like common sense to me. If the FCC considers this
'interference',
 which it apparently does, then devices MUST NOT intentionally
interfere.
 I would expect interfering for defensive purposes **only** would be
 acceptable.
 What constitutes defensive purposes?
 Since this is unlicensed spectrum, I don't think there is anything one
has
 a right to defend :)

 /Mike


If you charge for access and one person pays and sets up a rogue AP
offering free WiFi to anyone in range.  I can see a defensive angle there.

Lyle Giese
LCR Computer Services, Inc.

In that case turn off the offenders access.  No FCC violation doing that.
In any case, that was not what was happening here.

/Mike




Re: Marriott wifi blocking

2014-10-03 Thread Michael Van Norman
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.

/Mike


On 10/3/14 5:15 PM, Mike Hale eyeronic.des...@gmail.com wrote:

So does that mean the anti-rogue AP technologies by the various
vendors are illegal if used in the US?

On Fri, Oct 3, 2014 at 4:54 PM, Jay Ashworth j...@baylink.com wrote:
 - Original Message -
 From: Ricky Beam jfb...@gmail.com

 It doesn't. The DEAUTH management frame is not encrypted and carries no
 authentication. The 802.11 spec only requires a reason code be
 provided.

 What's the code for E_GREEDY?

 Cheers,
 -- jra
 --
 Jay R. Ashworth  Baylink
j...@baylink.com
 Designer The Things I Think
RFC 2100
 Ashworth  Associates   http://www.bcp38.info  2000 Land
Rover DII
 St Petersburg FL USA  BCP38: Ask For It By Name!   +1 727
647 1274



-- 
09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0




Re: Marriott wifi blocking

2014-10-03 Thread Michael Van Norman
On 10/3/14 7:25 PM, Hugo Slabbert h...@slabnet.com wrote:

On Fri 2014-Oct-03 17:21:08 -0700, Michael Van Norman m...@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.

/Mike




Re: Marriott wifi blocking

2014-10-03 Thread Michael Van Norman
One of the reasons I pointed to the California law is that it covers above
L1 even if FCC authority does not.  The state law also provides for
criminal penalties.  I do not know if other states have similar laws.

/Mike

On 10/3/14 7:42 PM, Hugo Slabbert h...@slabnet.com wrote:

On Fri 2014-Oct-03 16:49:49 -0700, Owen DeLong o...@delong.com wrote:


On Oct 3, 2014, at 16:12 , Wayne E Bouchard w...@typo.org wrote:

 On Fri, Oct 03, 2014 at 02:23:46PM -0700, Keenan Tims wrote:
 The question here is what is authorized and what is not.  Was this
to protect their network from rogues, or protect revenue from captive
customers.

 I can't imagine that any 'AP-squashing' packets are ever authorized,
 outside of a lab. The wireless spectrum is shared by all, regardless
of
 physical locality. Because it's your building doesn't mean you own the
 spectrum.


 I think that depends on the terms of your lease agreement. Could not
 a hotel or conference center operate reserve the right to employ
 active devices to disable any unauthorized wireless systems? Perhaps
 because they want to charge to provide that service, because they
 don't want errant signals leaking from their building, a rogue device
 could be considered an intruder and represent a risk to the network,
 or because they don't want someone setting up a system that would
 interfere with their wireless gear and take down other clients who are
 on premesis...

 Would not such an active device be quite appropriate there?

You may consider it appropriate from a financial or moral perspective,
but it is absolutely wrong under the communications act of 1934 as
amended.

The following is an oversimplification and IANAL, but generally:

You are _NOT_ allowed to intentionally cause harmful interference with a
signal for any reason. If you are the primary user on a frequency, you
are allowed to conduct your normal operations without undue concern for
other users of the same spectrum, but you are not allowed to
deliberately interfere with any secondary user just for the sake of
interfering with them.

The kind of active devices being discussed and the activities of the
hotel in question appear to have run well afoul of these regulations.

As someone else said, owning the property does not constitute ownership
of the airwaves within the boundaries of the property, at least in the
US (and I suspect in most if not all ITU countries).

Owen


Serious question:  do the FCC regulations on RF spectrum interference
extend beyond layer 1?  I would assume that blasting a bunch of RF noise
would be pretty obviously out of bounds, but my understanding is that
the mechanisms described for rogue AP squashing operate at L2.  The
*effect* is to render the wireless medium pretty much useless for its
intended purpose, but that's accomplished by the use (abuse?) of higher
layer control mechanisms.

I'm not condoning this, but do the FCC regulations RF interference
apply?  Do they have authority above L1 in this case?

-- 
Hugo