tap device at boot time

[Bakul Shah]

> maybe this is slightly OT, but I tried using /dev/tap0 by QEMU on FBSD 7.0-CU
> RRENT and 6.2-STABLE at boottime. 

...

> (MAC_ADDRESS replaced by a valid MAC address). Reason ist I try to get an IP 
> via DHCP - this is restricted by our computer center and their DHCP maintenan
> ce so I do not have influence on that. I need to provide them a fix MAC addre
> ss.

My response is definitely off topic but with qemu don't you
need a fixed mac address for the *guest* OS if you want your
to assign an IP address via DHCP?  For that you use -net
nic,MACADDR so that the guest will use MACADDR.  tap0 mac
address doesn't matter.  Or may be I misunderstand you....