Differences

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--- wireless_network [2007-07-12 11:07] – external edit 127.0.0.1
+++ wireless_network [2007-07-12 11:22] – nik
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-Wireless Network(s/ing)
+===== Wireless Network(s/ing) =====
-general info (802.11 related)
+==== general info (802.11 related) ====
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   * access point utilities for GNU/linux http://ap-utils.polesye.net/
-community based wireless networks
+==== community based wireless networks ====
 the Consume project is creating a decentralised, wireless network in london ec2 area, nodes are contributed voluntarily. http://consume.net/consume.html
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 wireless network visualisation http://www.ittc.ku.edu/wlan/
-antennas / mods
+==== antennas / mods ====
 homebrew antenna shootout (using tin cans for higer dBm!) http://www.turnpoint.net/wireless/has.html
 waveguide antenna http://www.oreillynet.com/cs/weblog/view/wlg/1124
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 http://kevlar.burdell.org/~will/antenna/
-protocols
+==== protocols ====
 GPRS
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-unsorted notes
+==== unsorted notes ====
 For doing this type of war driving, you don't need to actually connect to each AP. The card is put into a low-level promiscuous mode, so it can receive all packets. Every AP sends out a continuous stream of 'beacon' packets which the software can use to determine what networks are available. Also, at least on Prism-based cards, you get both a signal and noise measure for every packet received. So you just drive around snarfing up packets, and every one you get you can check for the source MAC address (to determine the AP) and the S/N ratio. No need to talk to the AP's at all, it's totally passive.