[PLUG] ubuntu and wpa wireless - semi/mostly solved

[Mike Leone <turgon@mike-leone.com>]

So with much digging, it turns out I need a package called "wpa_supplicant", 
to handle the WPA encryption. And it *mostly* works.
 
 "Mostly" means that if I issue the "wpa_supplicant" command manually, and 
tell it to go daemon, and then I tell it to go get an IP address using 
dhclient, then it works. As witnessed by the fact that I am writing this 
email wirelessly ...

sudo wpa_supplicant -B -Dmadwifi -i ath0 -c /etc/wpa_supplicant.conf
sudo dhclient ath0
 
 But how to get it to happen automatically? My searches indicate that ubuntu 
starts wpa at startup, so I tried /etc/default/wpasupplicant file:

ENABLED=1
OPTIONS="-w -Dipw -iath0 1 -c /etc/wpa_supplicant.conf"

<http://www.wlug.org.nz/WirelessNetworkSecurityNotes>

Which did diddly for me, as I had to issue it manually. I tried :

iface ath0 inet dhcp
  pre-up wpa_supplicant -B -iath0 -Dmadwifi
  down skill wpa_supplicant

in /etc/network/interfaces, which did the same (i.e., nothing).

So what am I missing now, to get this to happen automatically?
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