similar to: How to manually add a new interface to a bridge device?

Tried that as well, but this has to be something that gets set at the OS level and loaded, as if you look at dmesg output, you can see all the vnet?? nodes as the OS comes online. So the question is, what is virt-install doing that creates the needed vnet interface that is part of the bridge. I really had to kill and reload the VM just to load a second interface.. --- Howard Leadmon

How do you decide what MAC address to use for that VM interface? As I just tried to change the MAC to some other value close, like I made '52:54:00:34:e1:21' into say '52:54:00:34:e1:32', and when I try and load it in, I get the following: error: XML error: Attempted double use of PCI Address '0:0:4.0' Here is one of my network entries: <interface

I would stop the VM, edit its definition file (that's an XML file) and then start it up. But be careful: After you edit the XML file, you need to execute a command so KVM re-reads that file. I forgot that command, but you can look it up on Google. On Dec 9, 2015 7:52 AM, "Howard Leadmon" <howard at leadmon.net> wrote: > > > Maybe my google-fu is failing me, but I have

You most definitely do not need to destroy and re-create a VM just to add a 2nd network interface. I don't think those vnet interfaces got created by the host OS. I believe those are created by KVM (or libvirt) when you start a VM. I could be wrong though. But I just checked on my CentOS 6 KVM host machine and I see as many vnet interfaces as many VMs are currently running (or if one VM

BTW, adding a 2nd virtual nic to a guest can also be done with command line tools (I just googled this for you) : https://kashyapc.fedorapeople.org/virt/add-network-card-in-guest.txt ( It came up as 1st result when I searched for: virsh add network interface to existing guest ) But if you look at the bottom of this guide, they also mention that if something goes wrong, they resort to using

Hi all, I got a new laptop recently and what worked before no longer works (Fedora 23 on the laptops in both cases)... I'm trying to get nested virtualization to work because I use the VMs on the laptop to simulate an HA cluster that itself hosts VMs. I don't care much at all about the performance of the nested VM, it's just there so that I can work on the cluster's code.

Paul, On Thu, Mar 17, 2016 at 5:47 PM, Digimer <lists at alteeve.ca> wrote: > On 17/03/16 04:47 PM, paul.greene.va at verizon.net wrote: > > Thanks, I followed the 2nd article, and it got the existing virtual > > machines communicating with each other. > Right, so your VMs are on the same bridge group now (at Layer2 of OSI). > > > > However, any new

Given the following network configuration: =========== <network> <name>osc_mgmt</name> <uuid>d93fe709-14ae-4a0e-8989-aeaa8c76c513</uuid> <forward mode='route'/> <bridge name='osc_mgmt' stp='on' delay='0'/> <mac address='52:54:00:3f:fe:10'/> <ip address='192.168.80.254'

Hi, i'm rather new to kvm. now i set up a centos 7 guest on a centos 6 kvm host. when i try to use bridged networking in the centos7 guest this works for the interface that uses eth1/br1 on the host. when i try to use a second interface in the guest with eth0/br0 on the host this brings the host interface down as soon as i do ip configuration in the guest (so it seems). eth0 shall have

On Fri, 2016-03-18 at 13:02 -0400, Mike - st257 wrote: > Paul, > > > On Thu, Mar 17, 2016 at 5:47 PM, Digimer <lists at alteeve.ca> wrote: > On 17/03/16 04:47 PM, paul.greene.va at verizon.net wrote: > > Thanks, I followed the 2nd article, and it got the existing > virtual > > machines communicating with each other. > >

I've run into a problem on my KVM host where a single guest will be unreachable to other guests on the same host. This host has 2 bridged devices and guests assigned to each have the same issue. I've noticed that when I can't reach the problematic guest, the ARP entry for that system is incorrect. This issue seems to only be a problem about 75% of the time when making connections

<div style="FONT-FAMILY: Arial; COLOR: rgb(0, 0, 0); FONT-SIZE: 12px"><div>Thanks, I followed the 2nd article, and it got the existing virtual machines communicating with each other.<br /><br />However, any new virtual machines I created after making the changes can't communicate with anything, they can't even get out to the internet, even if I manually

Please check the dnsmasq hostsfile, should have all the records there: # cat /var/lib/libvirt/dnsmasq/osc_mgmt.hostsfile 52:54:00:2c:85:92,192.168.80.1,openstack-controller-00 52:54:00:e2:4b:25,192.168.80.2,openstack-database-00 52:54:00:50:91:04,192.168.80.3,openstack-keystone-00 52:54:00:fe:5b:36,192.168.80.7,openstack-rabbitmq-00 52:54:00:95:ca:bd,192.168.80.5,openstack-glance-00 -------

Hi all: I have some kvm host(rhel 6.4, 2.6.32-358.0.1.el6.x86_64), I ran several windows guest on it(more than 10 guest on one host and the guest os are win7-32/win7-64/win2k8), but the guest network kept down automatically, lost package. I tried virtio drive and e1000 drive,but it didn't work. However, when I run cmd.exe ping some other subnet ip it worked. The host and guest are connected by

<div style="FONT-FAMILY: Arial; COLOR: rgb(0, 0, 0); FONT-SIZE: 12px"><div>Thanks all for the suggested tips. I confess I tried VMWare hypervisor esxi and found it less complicated to get set up and functioning correctly. <br /><br />I'll have to take up KVM another day, when I'm in less of a hurry to get something up and running right away. <br

28.10.2016 23:32, Michal Privoznik пишет: On my host node i using system created bridge. example brctl show br1 bridge name bridge id STP enabled interfaces br1 8000.0025907925d3 no eth1 vnet0 vnet2

Hi, It looks like that's the issue: # cat /var/lib/libvirt/dnsmasq/osc_mgmt.hostsfile 52:54:00:2c:85:92,192.168.80.1,openstack-controller-00 But it makes me wonder...libvirt should be generating and managing this file right? Do I need to edit this myself or should libvirt be updating this file? If so then why isn't it? On Mon, Oct 30, 2017 at 5:21 AM, Yalan Zhang

On 9/9/20 7:13 AM, Paul van der Vlis wrote: > Hello, > > I want to do some testing and I have removed two VM's from the bridge > what connects them to internet, and added them to another isolated > bridge what's not connected to internet. Problem is that I cannot reach > the other host in the isolated network. > > Something like this: > > virsh shutdown

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi list, I searched the web for bug reports regarding this phenomenon I see on *multiple* machines of a customer, however, I didn't find an exact fit. So, I'd like to ask here whether anyone else has run into this. I have multiple CentOS 6 machines running using KVM to virtualize a bunch of machines on them (LVM-based). Software releases

Can i assign static vnet* device for some guests?