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

Discussion in 'Wireless Internet' started by Eddie Powalski, Aug 23, 2013.

  1. 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?
    Eddie Powalski, Aug 23, 2013
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  2. Eddie Powalski

    DevilsPGD Guest

    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.
    DevilsPGD, Aug 23, 2013
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  3. Does your laptop show a dorm wireless network? If it does, try it.
    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.
    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:
    Jeff Liebermann, Aug 24, 2013
  4. 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.
    GlowingBlueMist, Aug 24, 2013
  5. 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

    Note that not every skool dorm bans routers:
    Some allow only access points:

    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
    Jeff Liebermann, Aug 24, 2013
  6. Eddie Powalski

    ps56k Guest

    ps56k, Aug 26, 2013
  7. Eddie Powalski

    miso Guest

    Locally, UCSC does not exactly ban routers, and then only in specific
    "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?
    miso, Aug 28, 2013
  8. Eddie Powalski

    Char Jackson Guest

    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
    Char Jackson, Aug 29, 2013
  9. Eddie Powalski

    dold Guest

    I think they mean "connections and DHCP addresses".

    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.
    dold, Aug 30, 2013
  10. Eddie Powalski

    DevilsPGD Guest

    In the last episode of <>,
    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.
    DevilsPGD, Aug 31, 2013
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