VPN & Ubuntu

My network pauses was resolved, and it seems to be the NetworkManager
not using the madwifi driver.

In this case, following in daemon.log are used
"blah....NetworkManager: Supplicant state changed 0" // when pausing
"blah....NetworkManager: Supplicant state changed 1" // on resume

The solution is to use "wicd", which works perfectly with the madwifi/atheros driver.
The directions are here
http://wicd.sourceforge.net/download.php.