iwconfig	manipulate the basic wireless parameters
iwlist		initiate scanning and list frequencies, bit-rates, encryption keys...
iwspy		get per node link quality
iwpriv		manipulate the Wireless Extensions specific to a driver (private)
ifrename	allow to name interfaces based on various static criteria 

=================================
WAP - Wireless Access Point
WPA - Wi-Fi Protected Access
PSK - Pre-Shared Key
TKIP - Temporal Key Integrity Protocol
EAP - Extensible Authentication Protocol
EAP-MD5 - MD5-hash-based credentials (poor chice for 802.1x auth in WPA context)
EAP-TLS - TLS (descendant of SSL) encrypt. protocol; strong: uses digital certs.
PEAP - Protected EAP (Microsoft, weak auth for MD5 and MS-CHAP) MS centric!
EAP-TTLS - non-MS drivenalternative to PEAP.
LEAP - Cisco Lightweight EAP
EAP-SIM - MS's EAP-MSCHAPv2

PKI - Public Key Infrastructure

WPA (Protocols)
 |
 |---> Authentication: 802.1x
 |  	    |
 |  	    |---> EAP-TLS
 |  	    |---> EAP-MD5
 |  	    |---> PEAP
 |  	    |---> EAP-TTLS
 |  	    |---> (etc.)
 |
 ----> Encryption: TKIP
 
===== scan net for rouge WAPs
nmap -A -p1-85,113,443,8080-8100 -T4 --min-hostgroup 50 --max-rtt-timeout 2000 --initial-rtt-timeout 300 --max-retries 3 --host-timeout 20m --max-scan-delay 1000 -oA wapscan 10.0.0.0/8

iwconfig wlan0 essid Network_Name
iwconfig wlan0 key off
iwconfig wlan0 key yourwpakey
dhclient wlan0
===== dedicated hardware wireless bridge
iface eth0 inet static
address 192.168.1.99
netmask 255.255.255.0
pointopoint 192.168.1.226

poin-to-point address is the default address of the bridge
When done configuring the bridge, /etc/networking/interfaces can be restored to
iface eth0 inet dhcp