How to block MACs on WLAN?

tuxing · 2007-07-20 00:21:54

Hi All!

often, my wireless connection breaks and then i say "wpa_cli scan_results", it answers:

(...)
Selected interface 'ath0'
bssid / frequency / signal level / flags / ssid
00:0f:b5:18:ab:0e 2462 175 [WPA-PSK-TKIP] <my_ssid>
00:0f:b5:18:ab:0e 2462 175 [WPA-PSK-TKIP]
00:1a:4f:8d:16:b3 2437 169 [WPA-PSK-TKIP] FRITZ!Box Fon WLAN 7170

The FRITZ!Box belongs not to my network and (I beleave) is breaking my connection,:o
so that I've to restart my network not only by 'netcfg ath0' but by stopping ath0, removing all(!) modules
and restarting it again.

Has anyone an idea what to do, or how to block FRITZ!Box's MAC address?

--prefix=ThankX; --name=ThankX; --suffix=ThankX

calef13 · 2007-07-20 00:50:30

Check if the fritz box is running on the same channel as you, kwirelessmanager or something like that will tell you as will kismet etc.. If it is running on the same channel just change the channel that your box is running on.

So for instance say the fritz box is running on channel 1 and so is your WLAN, change your WLAN to run on channel 11. BTW, the 3 non-overlapping channels in 802.11b/g are 1,6 and 11 so pick one of those if possible.

tuxing · 2007-07-20 00:56:05

Thanks for your real fast answer, calef13!

I will try it ...:P

tuxing · 2007-07-20 02:54:53

Hmmm -- Kismet says the FRITZ uses channel 6 and my card uses channel 11.

I use a 11g card but kismet also says in it's log file my Maxrate is 11Mbit/s.

Seems I've to play with my network config...

calef13 · 2007-07-20 14:23:58

I take it that bycard you mean your wireless router? Well if so then yeah you will have to play, changing the channel won't help much, but you could try putting your wireless router on the highest channel number as possible but I don't think that's a good idea. If your have a 802.11g router and a 802.11b card then the router will only provide 11mbps max as that's all your wireless card can take. Or you could try and and ask the person who owns the fritzbox to switch their channel to 1 to minimize interference.

Finally, as far as I know linux doesn't support storing multiple wireless connections too well so it shouldn't be getting confused as it is only configured to connect to your wireless and not the fritz box.

Calef13

Last edited by calef13 (2007-07-20 14:25:36)

tuxing · 2007-07-20 18:56:48

Yes, you are right. I found that my 11g card only can "see" the FritzBox but the Fritzbox has no chance to connect to my router (also a 11g) cause of MAC filtering (only alowed MACs can connect to the router).

The influence is in particular that my 11g card get disturbed by the FritzBox (Fon/Router/iNet device as far as I know) and looses teh connection to my router.

Now, I'm going to make my feets durty...

ThankX, for now!

Arch Linux

#1 2007-07-20 00:21:54

How to block MACs on WLAN?

#2 2007-07-20 00:50:30

Re: How to block MACs on WLAN?

#3 2007-07-20 00:56:05

Re: How to block MACs on WLAN?

#4 2007-07-20 02:54:53

Re: How to block MACs on WLAN?

#5 2007-07-20 14:23:58

Re: How to block MACs on WLAN?

#6 2007-07-20 18:56:48

Re: How to block MACs on WLAN?

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