Hi, I'm using oVirt 3.2 on a single hosts with only one NIC. Currently there is only the ovirtmgmt network configured. But I need to add more networks, especially some internal networks like 192.168.x.y/24 need to be usable for VMs. From the oVirt Admin Portal this does not seem to be possible. It seems I cannot reuse the ovirtmgmt interface for any other network. Is this true? How am I supposed to add several networks in oVirt if I have just one NIC? Thanks - Frank _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users

When using multiple logical networks on 1 physical nic you will need most likely VLAN tagging, as all vm networks are configured as a bridge in oVirt.

Without the ability to control the networking devices in your vicinity and setup VLANs, what you're trying to do isn't supported via oVirt.

* Create two dummy interfaces on the host, and give them static IP addresses. For example: 192.168.1.254/24, and 192.168.2.254/24.

* Create two networks (VM) called One and Two and attach them to the dummy NICs.

Hello Frank, I suspect the problem is that VDSM isn't told by default to pass dummy NICs on to the engine. Have a look at the following file (exact path might vary): /usr/lib64/python2.7/site-packages/vdsm/config.py Search for a variable called "fake_nics", it should exist for 3.2. By default it is empty, but you may define a pattern for fake NIC names to be passed to the engine (in your case probably "dummy*"). Restart the vdsm daemon and everything should be fine. Maybe you'll have to move the host to maintenance and then reactivate just to refresh the UI. Please let us know if that works. Yours, Lior. On 16/05/13 15:48, Frank Wall wrote: > Hi Asaf, > > Am 13.05.2013 15:05, schrieb Assaf Muller: >> Without the ability to control the networking devices in your >> vicinity and setup VLANs, what you're trying to do isn't supported via >> oVirt. > > I was already guessing that it is not supported. Thanks for the > "official" confirmation. > >> * Create two dummy interfaces on the host, and give them static IP >> addresses. For example: 192.168.1.254/24, and 192.168.2.254/24. > > OK, I've populated the required files... > > /etc/modules-load.d/dummy.conf > /etc/modprobe.d/dummy.conf > /etc/sysconfig/network-scripts/ifcfg-dummy0 > > ...and after a reboot I have a new dummy NIC configured: > > dummy0: flags=195<UP,BROADCAST,RUNNING,NOARP> mtu 1500 > inet 192.168.0.254 netmask 255.255.255.0 broadcast 192.168.0.255 > ether 5e:61:0f:e7:f9:bc txqueuelen 0 (Ethernet) > RX packets 0 bytes 0 (0.0 B) > RX errors 0 dropped 0 overruns 0 frame 0 > TX packets 3 bytes 210 (210.0 B) > TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 > >> * Create two networks (VM) called One and Two and attach them to >> the dummy NICs. > > Unfortunately, this does not work as described. I was able to create > the new VM network from the Admin Portal successfully, but I am unable > to attach this network to the dummy NIC. > > When I choose the "Setup Host Networks" option from the Admin Portal: > My Datacenter => My Cluster => Hosts => My Host => TAB: Network > Interfaces -> Setup Host Networks > The dummy NIC is NOT listed, but only the physical NIC (with ovirtmgmt > attached to it). > > Is this expected? Does oVirt suppress any non-physical NICs? > Is there another way to attach the VM network to my dummy NIC? > > > > Thanks > - Frank > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users