Below is the file 'README' from this revision. You can also download the file.

This is a network configuration switcher for the ifup / ifdown system. It
works entirely by parsing /etc/network/interfaces and /etc/network/ifstate.
These files are watched, and if they change the applet notices and updates.

Big, notable features of this applet:
  * using /sbin/ifup and /sbin/ifdown is fine. The applet will update
    as you use those commands.
  * if you edit /etc/network/interfaces the applet will update as you
    change the file. So if you add another possible mapping or interface
    to map to, it will immediately appear in the applet menus.

The main applet menu displays:
  any interface which has been defined as a "mapping" interface
  any interface which has the method "ppp" or "wvdial"

See interfaces.example for how to set up /etc/network/interfaces to play
nicely with this program.

  ** This applet requires you to having "mapping" interfaces configured
  ** that run the /usr/lib/interapplet/get-state.sh program. If you do
  ** not do this, the applet will do nothing, and no interfaces will
  ** show in the menu when you left-click.

Bug reports are welcome: please send them to grahame@angrygoats.net
with as much information as possible.