recent CURRENT seems to affect if_tap, if_bridge with qemu

Bruce M. Simpson bms at
Tue Apr 10 05:26:32 UTC 2007

Scott Robbins wrote:
> To follow up, the problem seems to be solved.  In private email, someone
> suggested to me that I ensure that both bridge0 and tap0 were up.  Prior
> to my latest update of CURRENT, my /etc/qemu-ifup script just had 
> /sbin/ifconfig ${1}
> Changing it to 
> /sbin/ifconfig ${1} up
> fixed the problem. 

There is a sysctl which may help; it will mark a 
tap instance as IFF_UP immediately on devfs open or ifconfig clone.


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