On Thu, 9 Oct 2003, Thomas Hertz wrote:

> Recently I've experienced several kernel panics when executing "ifconfig
> gif0 destroy". Is this just my system, or can anyone else reproduce
> this? Currently I cannot test this myself on a "clean" setup until next
> week.

It turns out that it only panics on destroying a configured gif
interface. Carefully deleting the tunnel and all the aliases first
lets you safely destroy it. See kern/23125 for details and follow-up.

The problems I had actually using the tunnel were unrelated problems
with the upstream provider.

Frederick