tap(4) and host-only networking between host and guest

[Victor Sudakov]

Eugene Grosbein wrote:
> 
> > And if I need the VMs to talk to one another, I think I can bridge
> > several tapN devices on the host.
> 
> You could also just use broader IP network and single tap interface
> for several VMs.

Do you mean to say I can run several bhyve instances on the same
tap0 device? Like, with the identical "-s 3,virtio-net,tap0"
parameter?

tap(4) says that tapN is an exclusive-open device. And when I tried it
out, the second bhyve instances said "open of tap device /dev/tap0 failed",
which was kind of expected.


-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
sip:sudakov at sibptus.tomsk.ru