FreeBSD and hotswap devices.

[Baldur Gislason]

I have a Dell Latitude CPx laptop, and a Latitude C/Port II docking station.
The docking station has a built in 3com 10/100 network card that works fine 
with the xl driver.
However if I take the computer out of the dock without configuring xl0 down 
first, it locks up and needs a hard reboot, not such a big problem really.
And if I dock the computer after powering it up outside the dock, I don't see 
the dock network interface without rebooting.
My question is, how can I make FreeBSD cope with hot swapping the network card 
when switching into the dock?

Baldur