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Thread: Firewalling




  1. #1
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    Jan 2004
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    What recommendations are there for setting up a firewall using linksys wireless router with Windows XP?

  2. #2
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    the linksys router should have a built-in hardware firewall so I would recommend you just use it instead of a software firewall on XP. However, if you don't protect your wifi the hardware firewall wont make much difference.

    You can customize the firewall and other router settings (including wifi) by accessing linksys' built-in utility. You can access it by typing the LAN IP of the router into your web browser (usually 192.168.1.1) and entering the password.

    (oops)-tw
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  3. #3
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    to secure your wireless connection, don't bother with WEP unless you have very sensitive data. (i don't care if someone sniffs me surfing pr0n) :laugh: it only bogs your connection down.

    If you go wireless, set up the router so that it only communicates with certain MAC addresses (then put in the mac addy's of whatever wireless devices you have). Then set your SSID to whatever you want, just don't leave it as the default setting. (note: all the devices have to have the same SSID) then turn off SSID broadcast on all your devices.

    Once you do that, your network is pretty damn secure. nobody will be able to steal your internet, or access computers on your lan. (ad hoc mode may be a bit different tho, you would have to set MAC filtering in each wireless device just like in the router) you also wont be bogged down with the overhead of encryption.

    hope this helps!! :)
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  4. #4
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    Quote Originally Posted by The Wizard
    If you go wireless, set up the router so that it only communicates with certain MAC addresses (then put in the mac addy's of whatever wireless devices you have). Then set your SSID to whatever you want, just don't leave it as the default setting. (note: all the devices have to have the same SSID) then turn off SSID broadcast on all your devices.
    that's what I ended up doing on my network, works like a charm :thumb:

    I've seen first hand how easy it can be to crack the encryption, even 128 bit, so you're be much more secure doing as The Wizard suggests
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  5. #5
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    here is mine
    I also changed the channel to 11 form default 6 ;)
    PS. I hope u changed the default password! its the first thing I do:D

  6. #6
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    I appreciate all this help but I am very unfamiliar with these terms. I know how to get into the page to configure the routers settings, but I don't know what MAC addresses are. As for the SSID, I can just make that any word I want?? Is there an online guide or anything that gives step by step instructions??

    Thanks for the help.

  7. #7
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    Quote Originally Posted by jdiddens
    Is there an online guide or anything that gives step by step instructions?
    the manual that came with the router is a good place to start.

    to get the mac addresses (think of it as a permanent online serial number for your NIC) open a command window and type ipconfig /all into it and it will give you a sting of information. Look for Physical Address:, that is the mac address.

    yes, you can make the SSID just about whatever you want, but keep in mind that Caps count. Also, if you turn off SID broadcasting you will want to make sure it is something you can remember.
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  8. #8
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    So once I find my routers MAC address what do I do to make the router only communicate with that address?

  9. #9
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    it's not the router's mac address that you need, it's the mac of every wireless nic that you want to connect to it. That's why it's called mac filtering. Only those mac addresses will be allowed to connect. So unless the mac address is visably printed on the NICs you will need to run ipconfig /all on every computer in order to get their addresses. Note, however, that you don't need to do this for the PCs that are connected via cables to the router.

    Look under Advanced/Wireless/Wireless Network
    Access to edit the allowed mac addresses
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  10. #10
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    dont do that. get airsnare. its very useful wifi sniffer/intrusion detection.
    http://home.comcast.net/~jay.deboer/...e/download.htm
    its pretty kewl lil program. its gonna tell you all the MAC addresses on your network. and let ya know if a foreign one was detected :D

    here's a brief decription"
    AirSnare is an intrusion detection system to help you monitor your wireless network. It notfies you as soon as a machine connects to your wireless network, that is not included in your list of friendly MAC addresses. You can configure the program to send an email notification to the administrator, log the connection, and also send a message to the connected machine, informing them that their actions are being monitored. AirSnare integrates with Ethereal for additional package capturing features. "

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