opt/udev-netif-hotplug-handler

This port implements a hotplug handler for network devices, allowing to react
on hotplug events i.e. to assign an IP.

Once active, a handler script will call
  /etc/rc.d/net.<ifname> [start|stop]
where 'ifname' is the name of the interface, i.e. eth0, ath0, usb0 etc.