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Solved: "Network device" intruder

Discussion in 'Networking' started by Ilira, Nov 23, 2008.

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  1. Ilira

    Ilira Thread Starter

    Joined:
    Mar 22, 2008
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    Hi-
    Earlier this week I had a message pop up about a possible intruder on my unsecured wireless network and I'm curious as to what that might be.

    I have a Linksys WRT54G router and I'm running two Win XP machines I'll call Laptop and Desktop.

    I have Network Magic (I bought it for printer sharing). It has a network map showing connected devices. When my devices are connected, I can look at a 'details' screen which shows the device names and the operating system, the amount of memory, the processor model, and the wireless adapter model.

    Twice in the last six months (the latest time two days ago) I've gotten a message indicating a possible intruder is on the network and I see a new device on the network map. Oddly, the device is merely shown as 'Network Device' and there are no other details-- only a MAC address. What could this be?

    By the way, I live in a rural area with one neighbor possibly close enough to connect but I'd think I'd see details if this were a PC connecting.

    What else could it be?
     
  2. NeonFx

    NeonFx Malware Specialist

    Joined:
    Oct 22, 2008
    Messages:
    4,811
    Hi there,
    Figuring out who is connecting to your network is about as hard to figure out as what they are doing on the network. A MAC address is pretty much just the serial code on the person's networking device. So unless you can check your neighbor's device and compare MAC addresses, its hard.

    Why don't you just secure it? Use your user guide to figure out how.

    Go here:
    http://www.linksys.com/servlet/Satellite?c=L_CASupport_C2&childpagename=US%2FLayout&cid=1166859837401&packedargs=sku%3DWRT54G&pagename=Linksys%2FCommon%2FVisitorWrapper&lid=3740137401B01&displaypage=download
    and select your router's version from the drop down menu to download a copy of the user guide for your device. Use that to figure out how to secure your wireless network.
     
  3. JohnWill

    JohnWill Retired Moderator

    Joined:
    Oct 19, 2002
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    I agree with neonfx, simply secure the connection and you won't have to worry about freeloaders.
     
  4. Ilira

    Ilira Thread Starter

    Joined:
    Mar 22, 2008
    Messages:
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    OK, thanks. I had a MAC filter on it after the first incident but had it down temporarily. I just thought someone else may have seen this before.
     
  5. NeonFx

    NeonFx Malware Specialist

    Joined:
    Oct 22, 2008
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    MAC filtering is a good idea at times but data encryption is more important because all MAC filtering does is prevent anyone from connecting to the router, but not from "capturing" packets from the wireless radio transmissions and seeing the data inside them. By securing your wireless, especially if you are using WPA2 or 802.11x encryption, you are ensuring that all the data out in the radio waves is unreadable by anyone but yourself and the router you are connected to.


    :) If there is nothing else we can help you with, please mark this thread as "Solved" by clicking on the button at the top of this page.
     
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