What is Extra: rsn_ie ?

Dan Williams dcbw at redhat.com
Mon Apr 3 07:09:14 EDT 2006


On Mon, 2006-04-03 at 02:11 +0200, Timo Pannes wrote:
> Hi, 
> 
> can anybody tell me what the "Extra: rsn_ie" line in the output of "iwlist 
> ath0 scanning" actually is? (anything needed for WPA2 ?)
> 
> For example, I have:
> 
> ....
> Cell 03 - Address: 00:0F:66:C7:7B:C1
>                     ESSID:"wellenreiter3"
>                     Mode:Master
>                     Frequency:2.412 GHz (Channel 1)
>                     Quality=43/94  Signal level=-52 dBm  Noise level=-95 dBm
>                     Encryption key:on
>                     Bit Rates:1 Mb/s; 2 Mb/s; 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
>                     Extra:bcn_int=100
>                     Extra:rsn_ie=30140100000fac040100000fac040100000fac020000		
> Cell 04 - Address: 00:0F:3D:86:A1:FF
>                     ESSID:"wellenreiter2"
>                     Mode:Master
>                     Frequency:2.417 GHz (Channel 2)
>                     Quality=17/94  Signal level=-78 dBm  Noise level=-95 dBm
>                     Encryption key:on
>                     Bit Rates:1 Mb/s; 2 Mb/s; 5 Mb/s; 11 Mb/s
>                     Extra:bcn_int=100                 			  
> 	      Extra:rsn_ie=30180100000fac020200000fac04000fac020100000fac020000

Would be nice if madwifi used a GENIE tag rather than a CUSTOM tag to
push this data.  Then iwlist would be able to tell you exactly what
capabilies the access point had rather than dumping the hex string.
And, since GENIE and CUSTOM can coexist with each other, it shouldn't
break anything.  Maybe I'll do a patch for it.

Dan





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