tap(4) SIOCSIFMTU patch

[Sean C. Farley]

Here is a patch[1] that will allow the MTU to be set higher than 1500 on 
a tap(4) interface.  I ran into the need to do this when I had em0 set 
to 9000 and tried to bridge em0 with tap0 (MTU 1500) for QEMU.  A bridge 
interface will not allow interfaces with different MTU's to be added to 
it.

Since I have touched little inside the kernel, I thought it best if 
others take a look at it first.

Sean
   1. http://people.freebsd.org/~scf/if_tap-SIOCSIFMTU.patch
-- 
scf at FreeBSD.org