Why wouldn't a dorm room wireless router set up?

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We were told a wireless router won't work in the dorm room,  
which, we're told, has both wireless access and an RJ45 outlet.

A kid who was in the same dorm last year said the wireless
sucks, and they should use the wire in the dorm room walls.

So, we figured we'd bring a router, that way, they can be wireless
inside the room, with a strong signal that comes from the wires.

But, calling Housing, they said it won't work. Why not?


Re: Why wouldn't a dorm room wireless router set up?

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Strictly speaking, one wireless network should work just fine. Or
2-3-10. But once you get enough networks all sharing the same spectrum,
no one's network will work, including the dorm's own wireless network.

--  
The nice thing about standards, there is enough for everyone to have their own.

Re: Why wouldn't a dorm room wireless router set up?
On Fri, 23 Aug 2013 20:51:18 +0000 (UTC), Eddie Powalski

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Does your laptop show a dorm wireless network?  If it does, try it.

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Define sucks.  If you're expecting to run Bitorrent, massive cloud
server applications, or movie downloads, yeah it probably sucks.  For
email and web browsing, it's probably just fine.  See the dorm network
terms of service for the fine print.

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If the skool ResNet registers the MAC addresses of all connected
devices, it won't work unless you register the router.  The problem is
that the skool needs to know about all the devices that connect to its
network.  Wired and wireless routers hide the MAC addresses of the
connected computers, so the skool sniffers can't see them.  So, in
self defense, the skool probably refuses to allow routers.  

However, you might be able to set it up as an access point which does
NOT hide the client computers MAC addresses:
<http://www.dslreports.com/faq/11233
<http://www.smallnetbuilder.com/wireless/wireless-basics/30338-how-to-convert-a-wireless-router-into-an-access-point



--  
Jeff Liebermann     jeffl@cruzio.com
150 Felker St #D    http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann     AE6KS    831-336-2558

Re: Why wouldn't a dorm room wireless router set up?

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Get a router that allows you to spoof (change) the WAN MAC address.

Then register the PC like the school wants.  Once the wired connection  
is working directly to the PC change the WAN MAC address of the router  
to match the PC's and you should be good to go.

How the school may block the above method is if they are using a web  
based checks and balance system.  Much like many public library systems  
where you must read a web page and click on an acknowledgment icon that  
you will follow the school rules at the start of every session or say  
every 24 hours.  If they use that kind of verification then no a router  
will not work but as Jeff mentioned a dumb wireless access point will  
work as the text acknowledgment system will pass through the access  
point and work just as if the PC was wired.


Re: Why wouldn't a dorm room wireless router set up?
On Sat, 24 Aug 2013 07:51:00 -0500, GlowingBlueMist

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That won't work.  On the school network, the monitor/sniffer software
compares the MAC address with the user login.  If the login is used
with a new MAC address, it is logged, but usually nothing happens.
However, if a MAC address appears, and there's no associated login,
questions might be asked, especially if it's the source of excessive
traffic.  In the dorms, ResNet is not so picky about security and
usually does not have access to the schools authentication system.  

I'm not going to get involved in supplying workaround and bypass
methods.

Note that not every skool dorm bans routers:
<http://www.resnet.wvu.edu/routers/routers.html
<http://www.northeastern.edu/resnet/?p=678
Some allow only access points:
<http://resnet.uci.edu/router/

Locally, UCSC does not exactly ban routers, and then only in specific
dorms.  Where allowed, they ask that they be setup by someone with a
clue:
<http://its.ucsc.edu/resnet/new-students/wireless-routers.html


--  
Jeff Liebermann     jeffl@cruzio.com
150 Felker St #D    http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann     AE6KS    831-336-2558

Re: Why wouldn't a dorm room wireless router set up?
here's how UW/Madison addresses some of the issues -
registering a router, xbox, game console, etc -

https://kb.wisc.edu/helpdesk/page.php?id=20075




Re: Why wouldn't a dorm room wireless router set up?
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"Wireless routers, fresh out of the box, are configured to act as a DHCP  
Server and issue out DHCP addresses. While this works fine at home, it  
is not compliant with our network and will cause major network  
disruptions/errors for both the router owner and all students who live  
in that same area of campus.  If you choose to configure your router  
yourself, and it isn't configured correctly, we will take necessary  
actions to shut off the port until your router is brought in to our  
office and is correctly configured."

Does this make sense?

Re: Why wouldn't a dorm room wireless router set up?

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I think they're protecting themselves from the people who accidentally plug
a router's LAN port into the school's network, thus exposing the router's
DHCP server to the school network. Major disruption is possible and likely.

If the router's WAN port is connected to the school's network, there is no
DHCP exposure, but then other issues/restrictions/policies may come into
play.


Re: Why wouldn't a dorm room wireless router set up?

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This is something that a competent enterprise grade switch simply won't
allow, everything but the low end SOHO grade switches have the
capability to only deliver DHCP packets to specific ports, and therefore
a disruptive port can't disrupt anything but itself.

--  
The nice thing about standards, there is enough for everyone to have their own.

Re: Why wouldn't a dorm room wireless router set up?
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I think they mean "connections and DHCP addresses".

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Yes.

Anyone connecting to a rogue router at a college would appear to be in
dorm room X, according to the monitored traffic, perhaps exposing the
router owner to difficulties because of unauthorized traffic.

Depending upon what was being accessed, certain servers' inability to
initiate traffic back to that laptop because it was behind a PAT router
would be problematic and hard to discover.

--  
Clarence A Dold - Hidden Valley Lake, CA, USA  GPS: 38.8,-122.5

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