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  • edited February 2013
    For all you IT people: In my room at school I have an ethernet cable to use the high-speed internet access, which I had connected up to a wi-fi router for convenience sake. There's a policy against doing this for whatever reason and you're supposed to use the (crappy) wi-fi the school provides. I got my ethernet port disabled last week for this reason and they made me promise not to use my router anymore if they turn it back on.

    Here's the thing, though. The main reason I even had my router was for my 3DS and Wii, which hate the crappy school-provided wi-fi and always have trouble connecting. My question is 1) how exactly does the IT department know when my ethernet cable is hooked up to a router and 2) will they be able to detect it if I use my Macbook's internet sharing feature in order to get my 3DS/Wii online?
    Post edited by Sail on
  • Good question! I will answer when I am not limited to my phone for typing.
  • edited February 2013
    1. Did you register your you MAC with the school? Otherwise they're somehow checking the host name
    2. No

    Generally they don't allow them because stupid people will make a loop somehow and fuck the network up
    Post edited by MATATAT on
  • At my school they actual walk through with an antenna and pick up rogue SSIDs (somehow they are able to detect them even if you have broadcasting disabled).
  • Are there any bind or visually impaired members here?

    I got a job doing the marketing for a video/audio description company and i'm looking for blind or visually impaired people in the online community to help me find some answers to these questions:
    What online communities / forums are you part of?
    Are any exclusively for the disabled / blind?
    Are there any independent works such as web shows / animes / music videos that you would like described? (my boss is willing to do this for FREE!)
  • 1) how exactly does the IT department know when my ethernet cable is hooked up to a router and 2) will they be able to detect it if I use my Macbook's internet sharing feature in order to get my 3DS/Wii online?
    1) They probably know because of the MAC address of the router. I don't know if they can detect it but in the router, the device can use the MAC address of whatever machine that is connected to the router. By doing the cloning of the MAC and say use your laptop's MAC I doubt they can detect that.
    2) They can walk around with a laptop and scan for SSID's. You can have the router not broadcast it but it's not hard to detect it still.
  • edited February 2013
    At my school they actual walk through with an antenna and pick up rogue SSIDs (somehow they are able to detect them even if you have broadcasting disabled).
    Yep, the tool they use is typically a WiFi Fluke. The SSID may not be broadcasted, but it's still broadcasting a signal, and that's all you need.

    Sail, your school's wireless access points can (probably) tell when you put up a wireless network; your school's IT department will likely be able to see your Mac's Internet Sharing feature. The whole deal with Nintendo devices has been a known issue for a long time now, and Nintendo seems to have no interest in fixing it.
    Post edited by trogdor9 on
  • Chances are they just have the switch set to error-disable any port with more than one MAC address active on it. All the places I've worked have done that. They can see the MAC address of the router and the MACs of whatever's plugged into it.
  • Chances are they just have the switch set to error-disable any port with more than one MAC address active on it. All the places I've worked have done that. They can see the MAC address of the router and the MACs of whatever's plugged into it.
    I might not be remembering this right but I thought only the senders MAC (in this case the router) would be sent. So the receiving switch would only know of the router.
  • 1) how exactly does the IT department know when my ethernet cable is hooked up to a router and 2) will they be able to detect it if I use my Macbook's internet sharing feature in order to get my 3DS/Wii online?
    1) They probably know because of the MAC address of the router. I don't know if they can detect it but in the router, the device can use the MAC address of whatever machine that is connected to the router. By doing the cloning of the MAC and say use your laptop's MAC I doubt they can detect that.
    One thing to keep in mind is that MAC addresses contain a vendor ID in the first 3 bytes. If they see a MAC address on the network that belongs to a router manufacturer, they'll certainly get suspicious at the very least.
  • 1) how exactly does the IT department know when my ethernet cable is hooked up to a router and 2) will they be able to detect it if I use my Macbook's internet sharing feature in order to get my 3DS/Wii online?
    1) They probably know because of the MAC address of the router. I don't know if they can detect it but in the router, the device can use the MAC address of whatever machine that is connected to the router. By doing the cloning of the MAC and say use your laptop's MAC I doubt they can detect that.
    One thing to keep in mind is that MAC addresses contain a vendor ID in the first 3 bytes. If they see a MAC address on the network that belongs to a router manufacturer, they'll certainly get suspicious at the very least.
    Almost any device with a MAC address lets you manually change the MAC address. Lots of routers also have a feature that tells the router to clone the MAC address of one of the computers that is behind it.
  • edited February 2013
    Almost any device with a MAC address lets you manually change the MAC address. Lots of routers also have a feature that tells the router to clone the MAC address of one of the computers that is behind it.
    Very true, but how many people actually use these features unless they are both technically savvy enough to know to do it and actually need to do it?
    Post edited by Dragonmaster Lou on
  • Almost any device with a MAC address lets you manually change the MAC address. Lots of routers also have a feature that tells the router to clone the MAC address of one of the computers that is behind it.
    Very true, but how many people actually use these features unless they are both technically savvy enough to know to do it and actually need to do it?
    Almost nobody.
  • edited February 2013
    I might not be remembering this right but I thought only the senders MAC (in this case the router) would be sent. So the receiving switch would only know of the router.
    I primarily have experience with Cisco switches so I don't know about anything else, but on Cisco you can see the MAC of every device connected to a port.

    Post edited by Dave on
  • Is sheet rock the same as plaster board?
  • Is sheet rock the same as plaster board?
    Yeah, same stuff. Or Gyprock, as I know it.

  • I might not be remembering this right but I thought only the senders MAC (in this case the router) would be sent. So the receiving switch would only know of the router.
    I primarily have experience with Cisco switches so I don't know about anything else, but on Cisco you can see the MAC of every device connected to a port.

    Damn now I gotta figure this out.
  • By doing the cloning of the MAC and say use your laptop's MAC I doubt they can detect that.
    Okay. So maybe if I can do this I can just unplug my router while I'm not using it and most likely be good unless they happen to be walking around looking for it during that time?
  • edited February 2013
    By doing the cloning of the MAC and say use your laptop's MAC I doubt they can detect that.
    Okay. So maybe if I can do this I can just unplug my router while I'm not using it and most likely be good unless they happen to be walking around looking for it during that time?
    That might work for using a router but I can't imagine that changing the mac on your wii is any sort of easy. Plus it would just show up as two ip's for the same adapter which doesn't make sense.
    Post edited by MATATAT on
  • No, there's no need to change the MAC on the Wii. With a NAT router there's only one IP and MAC address from the outside.
  • No, there's no need to change the MAC on the Wii. With a NAT router there's only one IP and MAC address from the outside.
    Yeah but games have all sorts of trouble with NAT, you usually want to turn it off for online gaming.
  • No, there's no need to change the MAC on the Wii. With a NAT router there's only one IP and MAC address from the outside.
    Yeah but games have all sorts of trouble with NAT, you usually want to turn it off for online gaming.
    My games all work just fine through NAT unless I'm trying to run the server. In those cases, I use port forwarding.
  • edited February 2013
    No, there's no need to change the MAC on the Wii. With a NAT router there's only one IP and MAC address from the outside.
    Yeah but games have all sorts of trouble with NAT, you usually want to turn it off for online gaming.
    Not when done properly.
    Post edited by lackofcheese on
  • Port forwarding works, I've only really had trouble with it on consoles. Specifically FPS on the Xbox.
  • RymRym
    edited February 2013
    Yeah but games have all sorts of trouble with NAT, you usually want to turn it off for online gaming.
    That's ridiculous and untrue.

    Unless you're hosting a server, there's no need to disable NAT ever.

    Also, if you disable it, none of your other devices will work. AND, you have to turn off your DHCP server for whatever device you want to be connected to the Internet. AND, your device is now basically in what would before have been the DMZ.

    You basically don't need to turn of NAT, nor do you need to configure anything, for gaming. The only exceptions to this are old, busted-ass single-LAN games, games that accept unsolicited connections from the outside which simultaneously use arbitrarily, non-configurable ports AND you are trying to run multiple clients, and when you are yourself personally hosting the server.

    Post edited by Rym on
  • EA games running on consoles are pretty fucky with NAT, for whatever reasons (I honestly do not know). Now you can feel free to dismiss EA games on consoles as "not games" I guess. :-)
  • I think I remember NAT being an issue with wii games and the first Borderlands.
  • edited February 2013
    The only reason I've had to forward ports in recent history is for torrents. They can work without it, but often quite slowly.

    That said, it wouldn't surprise me to find out console games have terrible networking...
    Post edited by lackofcheese on
  • Thing is, turning off NAT is not the answer for even those fucky situations. Port forwarding or putting the console in the DMZ are the two answers.
  • I guess I didn't mean turning it off, looking online I suppose I meant opening it aka port forwarding. But I find it hard to believe my devices won't work if I was to turn it off. I could believe that I wouldn't be able to support as many devices, but I don't think your ISP would limit you to one and only one IP per session.
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