iwlist scan output incorrect?

jim barnes mail.list.mail at gmail.com
Mon Mar 17 04:24:39 GMT 2008


On Sunday 16 March 2008 07:37:57 pm Vitorio Okio wrote:
> I'm using WRT54G router with DD-WRT firmware. My Wireless AP is set to
> use WPA2-PSK/AES.  From what I know DD-WRT does not fall back to TKIP in
> such setting independently of a client request.
>
> However when I'm running 'iwlist scan' on my Gutsy using bcm43xx
> restricted driver the output is as follows:
>
> eth1 Scan completed :
> Cell 01 - Address: XX:XX:XX:XX:XX:XX
> ESSID:"MyESSID"
> Protocol:IEEE 802.11g
> Mode:Master
> Channel:9
> Frequency:2.452 GHz (Channel 6)
> Encryption key On
> Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
> 11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
> 48 Mb/s; 54 Mb/s
> Quality=93/100 Signal level=-57 dBm Noise level=-72 dBm
> IE: IEEE 802.11i/WPA2 Version 1
> Group Cipher : TKIP
> Pairwise Ciphers (1) : TKIP
> Authentication Suites (1) : PSK
> Extra: Last beacon: 12ms ago
>
> At this point I'm not sure anymore what cipher I'm using on my
> connection.  Is it possible that 'iwlist scan' provides an incorrect
> output?
>
> Any suggestions, please?

Using the same router/firmware/settings, I see what one would expect:

m6n:~ # iwlist eth1 scanning
eth1      Scan completed :
          Cell 01 - Address: 00:0F:66:39:DC:1A
                    ESSID:"GoPlayElsewhere!"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Channel:3
                    Frequency:2.422 GHz (Channel 3)
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality=55/100  Signal level=-67 dBm
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    Extra: Last beacon: 168ms ago

My wireless card is an Intel 2200bg...
-- 
Jim Barnes
--
Certainly the game is rigged. Don't let that stop you; 
if you don't bet, you can't win.            -Lazarus Long 
--
Linux 2.6.22.17-0.1-default




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