On 21/11/13 17:32, aurfalien wrote: > > On Nov 21, 2013, at 2:24 PM, Digimer wrote: > >> I'm not sure what you are asking. >> >> You should not see the vnetX devices from the VM (or even the VM's >> definition file). They're created as needed to link the VM's interface >> to the bridge. Think of them as simple network cables. >> >> Some of the formatting isn't showing well on my mail client (text only), >> so I am having a little trouble parsing some of the data... >> >> If the VMs are using br6, then you see that it's already at 9000, so you >> should be able to use 9000 from inside the VM as well. Trick is, the >> vnetX devices are connected to the br0 bridge instead, which is set to >> 1500 because eth0 is still 1500. So at this point, the VMs are >> traversing br0, not br6. >> >> As for 'virbr0', that is libvirtd's default NAT'ed bridge. I don't >> recommend using those. I usually destroy them, personally. >> >> So to fix your problem, you need to tell the VMs to use br6. If you want >> to use jumbo frames on br0, you need to increase the MTU of eth0. >> Remember that the bridge will use the MTU of the lowest connected device. > > So far my current VMs that work, I see there network as; > > Host device vnet 0 (Bridge 'br0') > > I do not see a; > > Host device vnet# (Bridge 'br6') > > My ints of interest are set to jumbo so thats not a prob. I think the prob is that I am missing the vnet bridge device for eth6. > > So I'm curious why its not there and how do I create it? > > - aurf I can't speak to the tools you are using, but I can say that this is where the bridge is defined in the VM's XML definition file: ==== [root at an-c05n01 ~]# cat /shared/definitions/vm01-win2008.xml |grep vbr -B 2 -A 5 <interface type='bridge'> <mac address='52:54:00:8e:67:32'/> <source bridge='vbr2'/> <target dev='vnet0'/> <model type='virtio'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> ==== Try changing: <source bridge='br0'/> -> <source bridge='br6'/> and restart the VM. -- Digimer Papers and Projects: https://alteeve.ca/w/ What if the cure for cancer is trapped in the mind of a person without access to education?