Date: Wed, 4 Nov 2015 13:54:54 +0600 From: Victor Sudakov <vas@mpeks.tomsk.su> To: freebsd-net@freebsd.org Subject: tap(4) and host-only networking between host and guest Message-ID: <20151104075454.GA99850@admin.sibptus.tomsk.ru>
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Colleagues,
I am experimenting with bhyve which uses tap(4) for network access.
I don't want to bridge tap0 with any of the hosts's real NICs. How can
I create a private network just between the host and the guest?
I even tried to create a lo1 interface on the host and bridge it with
tap0 but lo1 would not add as a bridge member even if I adjust its MTU.
root@vas:/etc # ifconfig bridge0 create
root@vas:/etc # ifconfig lo1 mtu 1500 up
root@vas:/etc # ifconfig bridge0 addm tap0
root@vas:/etc # ifconfig bridge0 addm lo1
ifconfig: BRDGADD lo1: Invalid argument
root@vas:/etc #
root@vas:/etc # ifconfig bridge0
bridge0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 02:8f:fd:16:50:00
nd6 options=9<PERFORMNUD,IFDISABLED>
id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
root id 00:00:00:00:00:00 priority 0 ifcost 0 port 0
member: tap0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 5 priority 128 path cost 2000000
root@vas:/etc #
Any help is appreciated.
--
Victor Sudakov, VAS4-RIPE, VAS47-RIPN
sip:sudakov@sibptus.tomsk.ru
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