WEP and MAC Filter

My Linksys WRT54Gv2 does it right: the WPA (or WEP) key must match AND the MAC address must match (if Permit Only is selected) for the PC to access the 'net.

Sounds like the DIR-300 has a bug or (just maybe) you did not correctly set up the MAC filter; double-check your settings.

Thanks!

Now my schedule for Saturday is ready!

Mohan

Bob Willard wrote:

This is a useless feature. All it take for someone to overcome a MAC filter is to make a text change in the network card setup to use a different MAC.

Worse, when an interace dies (or a USB dongle gets lost) it then requires the hassle of adding the new MAC.

Hello,

Yes, they connect but they do not pass through to the network.

If you have the right hardware, you should use a strong WEP key such as 256 or 512 bits encryption. If not, a good long (rolling your head all over the keyboard) WPA or WPA2 key is the way to go.

Ciao @+

The router is connected to the LAN via one of the 1-4 lan ports. There is no wan connection to the router. Machines with wifi adaptors connect to the lan via the router radio connection. Others are (obviously) wired. Re authentication: Network Neighbourhood Properties->wireless networks tab-

Cheers,

Mohan

Bob Willard wrote:

If the router is the DHCP server for the entire LAN, then I suggest that you let it also assign IPAs for the wireless PCs. If there is another DHCP server in the LAN, then you should disable the router's DHCP server (and assign static IPAs for your wireless PCs if you need to). In most SOHOs, you should avoid having more than one DHCP server in a LAN, since that may cause invisible nodes (due to multiple subnets).

But how you assign IPAs (dynamic or static) should have no impact on the encryption method for wireless nodes, or FWIW on MAC filtering.

Well.... a would be intruder would at least have to know what MAC to change his NIC to.

After going to the trouble of breaking the WEP key, spoofing the MAC address is trivial.

Jerry