How to block someone from WiFi network?

Discussion in 'Mac OS X Server, Xserve, and Networking' started by jc002, Oct 28, 2010.

  1. jc002 macrumors newbie

    Joined:
    Sep 20, 2010
    #1
    Hey guys, is there any 'NetCut' type program available on Mac? There's someone killing the WiFi I use with huge downloads etc. Going in and adding mac addresses etc on the router is unrealistic for me. Is there anything I can do to just block/kick one particular computer from the network?

    Thanks.
     
  2. miles01110 macrumors Core

    miles01110

    Joined:
    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
    #2
    Change the password.

    What kind of router do you have?
     
  3. Sedulous macrumors 68000

    Sedulous

    Joined:
    Dec 10, 2002
    #3
    Depends on the features of your router(s). Apple routers do not have a blacklist but perhaps some others do. Aside from using a password to control access, I'm not sure what options you can try.
     
  4. blacka4 macrumors 6502

    Joined:
    Sep 28, 2009
    Location:
    Pittsburgh
    #4
    mac addresses are the only way to really secure your network. unless you have something like 100's of wireless users or friends coming over to use it go that route
     
  5. mstrze macrumors 68000

    Joined:
    Nov 6, 2009
    #5
    +1

    You don't have a password for access?
     
  6. belvdr macrumors 603

    Joined:
    Aug 15, 2005
    #6
    That's not true. MAC addresses can be spoofed and are not encrypted.

    OP, from the sounds of it, you do not administer the network, as adding one MAC address is unrealistic. It sounds as though you are on a shared network and are trying to kick someone off. If so, you shouldn't be trying to kick someone from it.
     
  7. Detrius macrumors 68000

    Joined:
    Sep 10, 2008
    Location:
    Asheville, NC
    #7
    I googled this program you're asking about. It looks like it's basically a hackers' tool, doing ARP poisoning and the like. There ARE open source command line programs to do similar things on the Mac, but if someone doing downloads is killing YOUR network, you need a router that can properly handle QoS, and you need to configure it either to give that type of traffic a lower priority or to give that machine a lower priority.
     
  8. paduck macrumors 6502

    Joined:
    Jul 5, 2007
    #8
    Not unless you are the administrator of the router. In which case, you probably should just change/add a password. If you aren't the administrator, then it isn't really up to you to police the use of the router. Bring your issue to them, they might be able to help you out.
     
  9. blacka4 macrumors 6502

    Joined:
    Sep 28, 2009
    Location:
    Pittsburgh
    #9
    you are right they can be spoofed, and are not encrypted. I have a 2 phase security on my wireless network. One is a WEP password and the other is I have mac address filtering turned on, on my wireless router...works great for me
     
  10. wpotere Guest

    Joined:
    Oct 7, 2010
    #10
    Your networked can be hacked easily. WEP is poor encryption and there are tons of apps out there that will hack it and MAC filtering is pointless as all one has to do is snoop the network and watch for an authorized MAC address then spoof it. Sorry, but you don't know what you are talking about here....

    WPA2 is probably the best commercial grade encryption right now. Get a router that can handle this and set a pass phrase that nobody but you knows. Don't worry about MAC filters or hiding the SID as they are pointless. Strong encryption and strong passwords are the way to go.
     
  11. belvdr macrumors 603

    Joined:
    Aug 15, 2005
    #11
    Spot on, except WPA2 is the best encryption right now (no probably about it). It only takes a minute or so to take over a WEP network.
     
  12. blacka4 macrumors 6502

    Joined:
    Sep 28, 2009
    Location:
    Pittsburgh
    #12
    i posted that before I looked at my router settings...I actually am using WPA2, plus I hid the SSID, and use the mac address filtering. I have not had a problem yet on either of my wireless networks
     

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