Capability flags and bitrates

[ashmikuz]

Hi everybody! I'm working with wigle for my dissertation, and I have stumbled upon the capability flags returned by the queries. My question is: can I get the AP supported bitrates from the capabilities? I don't seem to understand the format and the only information I found about it is this: "802.11 capability flags as formatted by NetStumbler". What I would like to do is to determine what version of the protocol the AP is using (802.11a/b/g/n). It's not a showstopper for my project, but it wold be nice to be able to do that.

[pejacoby]

Found some info in the Netstumbler FAQ:

http://www.netstumbler.org/netstumbler- ... t2875.html

The flag field contains the 802.11 capability information in hexadecimal. It's documented in section 7.3.1.4 of the 802.11b spec. To save you having to go and look, the bits are: 0001 ESS ("Infrastructure")
0002 IBSS ("Ad-Hoc")
0004 CF-Pollable
0008 CF-Poll Request
0010 Privacy ("WEP")
0020 Short Preamble
0040 PBCC
0080 Channel Agility
FF00 Reserved

updated: 11-22-02

A little info on the Dot11 wiki as well http://dot11.info/index.php?title=Chapt ... ent_frames
There appears to be a few links out on the web to the 802.11b specifications too.

From a quick scan, it doesn't look like this provides the information you are looking for. Maybe there are extensions in later g/n/ac revisions?