vardhan.vishnu: an example of managing wireless network system by integrating ifplug,guessnet and wpa

source : debian-user-digest # 1517.

interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
#allow-hotplug eth0

# ifplugd brings up interfaces, so do not bring them up at startup
noauto eth0 
#auto eth0

#iface eth0 inet dhcp


# Profile "none" is selected if no network signal is detected
# (i.e. there is no cable plugged into the socket)
#no-net missing-cable

mapping eth0
script guessnet-ifupdown
map default: foreing
map timeout: 3
map verbose: true

# If there is no link detected, don't try DHCP
iface interface inet manual
test missing-cable
pre-up echo No link present.
pre-up false

# guessnet default
iface foreing inet dhcp    

allow-hotplug wlan0
iface wlan0 inet manual
wpa-driver wext
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf

iface wifihome inet dhcp

wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
ap_scan=1
eapol_version=1
fast_reauth=1

network={ 
ssid="*******"
scan_ssid=1
proto=WPA2
key_mgmt=WPA-PSK
psk="***********"
pairwise=CCMP TKIP 
group=CCMP TKIP 
priority=5 
id_str="wifihome"
}