Odd mac addresses showing up?

Discussion in 'DD-WRT Firmware' started by oneskinnydave, Feb 14, 2007.

  1. oneskinnydave

    oneskinnydave Network Guru Member

    Hi All,

    So while I am a slight noob at this, I can tell you I'm a little smarter then the average noob. I was able to "unbrick" my router the hardcore way when it completely died mid-firmware flash, and have successfully been able to set up a WDS with an Apple AirportExpress, WRT54G, and even been able to hook up my xbox (before it broke) to the airport and all worked well.

    My problem is this - lately some strange mac addresses have been showing up under my DHCP Client List (not my "wireless" client list!). Is this users that are catching onto my AirportExpress wireless signal (which is a "repeater" mode within the WDS)? If it is, or isn't, how can I ban these specific mac addresses from accessing the signal? The MAC filtering only seems to ban wireless clients showing up on the "wireless" client list. I have gone into the "advanced routing" tab and denied internet access to the rogue MAC addresses, but I'd like to kick them completely.

    My main problem is I cannot add a simple encryption (not even WEP) to the signal because of the AirportExpress (it's a small miracle alone that I got it working with a non-Apple router!), I already have the SSID broadcast turned off, but these same few MAC addresses show up.

    Here is what I am currently running:
    WRT54G - running DD-WRT #22
    Mac G5 connected directly to the router
    AirportExpress connecting in WDS mode as a signal repeater
    G4 Powerbook connecting with wireless
    and 2-3 Rogue MAC Addresses (that I know are neither the hardwired G5, G4 powerbook, OR AirportExpress)

    Let me know what you all think!
  2. ifican

    ifican Network Guru Member

    Post the first six characters of the mac and I can tell you what company they are assigne too, i know this doenst help alot but maybe they are yours and you just dont remember. I have done this to myself a few times when testing different wireless adapters and forgetting about some of them.
  3. stangri

    stangri LI Guru Member

    Also, are you running any virtualization systems? Parallels on my mac looks like a hardwired connection on my WRTSL54GS too.

    PS. I've noticed you've got PPC system, still, you might be running vmware or something.
  4. oneskinnydave

    oneskinnydave Network Guru Member

    It seems after I only allowed access to my specific MAC's through the advanced routing tab, they have gone for the time being. I'll post them as soon as they re-appear. I do run Vitrual PC on occasion, so I'll double check that as well!

    Thanks so much for the help, this site really has helped me a great deal in understanding this whole networking stuff!

  5. oneskinnydave

    oneskinnydave Network Guru Member

    Ok, so here is one that pops up fairly regularly:

    Could that be the actual lan card on my hard wired g5? The other mac addresses showing up right now are:
    Laptop: 00:0A:95
    G5 MAC: 00:0A:95

  6. oneskinnydave

    oneskinnydave Network Guru Member

    Hey All,

    So I'm getting some more people popping up under DHCP client list, and I can't quite tell what they are doing! I don't think they are using the web or anything, I kept a "high" logging status and don't see any activity by them...so why would they stick on as a client list?

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