Re: [libvirt] Adding ips and routes to type="ethernet" devices

Hi Ruben, On Mon, 2016-07-18 at 19:48 +0200, Ruben Kerkhof wrote: [...] > I am a bit stuck though. I've created the vm with a tap device: > > <interface type='ethernet'> > <mac address='00:1a:4a:1b:d9:cc'/> > <model type='virtio'/> > <rom bar="off"/> > <source> > <ip address='192.168.42.41' family='ipv4' > peer='192.168.42.42' prefix='32'/> > <route family='ipv4' address='192.168.100.0' > prefix='24' gateway='192.168.42.42'/> > </source> > </interface> > > After starting, the link stays down and no ips or routes are being created: No surprise to me: this feature has been implemented for the lxc driver and the qemu driver doesn't care about these config bits.

> root@test1: ~# ip link show dev vnet0 > 15: vnet0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode > DEFAULT qlen 1000 > link/ether fe:1a:4a:1b:d9:cc brd ff:ff:ff:ff:ff:ff > root@test1: ~# ip route show > default via 10.10.5.1 dev br1010 > 10.10.5.0/24 dev br1010 proto kernel scope link src 10.10.5.2 > > I feel like I'm missing a step. Who is responsible for setting the > link up, it this libvirtd, qemu, or do I need to write a qemu-ifup > script? Qemu has the possibility to set up the ip address directly only with -net nic. For a tap device, this has to be handled by qemu-ifup / qemu-ifdown. -- Cedric