On Mon, Feb 13, 2017 at 02:02:48PM +0100, Daniel Niculescu wrote: > > > On 02/13/17 13:37, Miroslav Lachman wrote: > > C. L. Martinez wrote on 2017/02/13 13:09: > > > > > Why when a bhyve guest shutdowns or reboot tap interfaces goes > > > down and lost IP assigned address?. I need to use same tap interface > > > for several guests and assign an IP to this tap interface to act as > > > a router for these guests. > > > > IP address is set on the guest, so as long as you have the network set up > the IP address will be persistent. > What you need is a bridge to which you add all your tap interfaces. > > Set the kernel state as advised by Martinez and make sure you have it also > in /etc/sysctl.conf: > #sysctl net.link.tap.up_on_open=1 > #echo "net.link.tap.up_on_open=1" >> /etc/sysctl.conf > > Create a bridge interface: > #ifconfig bridge0 create > > Add your host interface if you want external connectivity for your guests: > #ifconfig bridge0 addm em0 > > Create the tap interfaces for the guests: > #ifconfig tap0 create > #ifconfig tap1 create > > Add them to the bridge: > #ifconfig bridge0 addm tap0 addm tap1 > > After booting the guests, they will be both bridged with your physical > interface em0 (replace em0 with your actual interface): > > #ifconfig bridge0 > bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu > 1500 > description: vm-local > ether 02:ed:0d:ca:74:00 > nd6 options=1<PERFORMNUD> > groups: bridge > 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 32768 ifcost 0 port 0 > member: tap1 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> > ifmaxaddr 0 port 5 priority 128 path cost 2000000 > member: tap0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> > ifmaxaddr 0 port 4 priority 128 path cost 2000000 > member: em0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP> > ifmaxaddr 0 port 1 priority 128 path cost 20000 > > Perhaps you could use an utility to manage the VMs, like vm-bhyve, iohyve, > etc. > >
Thanks Daniel. I have tried what you say, but ping doesn't works between host and guest. If I put an ip to the bridge works ok, but not when I assign an ip to tap interface. Any idea why?? -- Greetings, C. L. Martinez _______________________________________________ freebsd-virtualization@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"
