destroying tunN

[Brooks Davis]

On Mon, Jun 12, 2006 at 08:47:10PM -0400, David Gilbert wrote:
> first off, why don't if_tun devices destroy themselves when the owner
> closes the device?

Historical behavior.  I suspect many people would be very suprised it
they automaticly vanished, but there's some argument that's the right
thing to do.

> But... aslo, why can't I 'unplumb' an unused tunN device with
> ifconfig?

Because they aren't hooked to the interface cloning system since their
auto creation code predates it.  This should be fixed, but is more
difficult than for a staticly compiled interface due to the existing
cloning code.

-- Brooks

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