similar to: "error: error creating bridge interface virbr0: Operation not supported" occurred what net-start default

On 23.08.2015 07:20, chenhongzhen@zhicloud.com wrote: > Hi, All! > > I found a bug! > When I start the default network, I got a error shown as below: > > [root@localhost ~]# virsh net-start default > error: Failed to start network default > error: error creating bridge interface virbr0: Operation not supported > I think it's caused by commit fc7b23db (released in

in my case each ethernet must in UP status even it is a NAT network where is the point i can start its virt-ethernet when i start a NAT-network? thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://listman.redhat.com/archives/libvirt-users/attachments/20130415/f6f464d6/attachment.htm>

I need some help in understanding libvirt's virtual networking. I have configured bridged networking (shared physical device) on libvirt+KVM system which is working fine. Also, I am using default NAT network on with virbr0 bridge device and virbr0-nic. I would like to get better understanding on virbr0-nic works in this virtual network configuration. I understand that traffic from virbr0

This is fresh install of CentOS v6 and Xen v4.1 on a new Dell server following the tutorial posted at: http://wiki.xensource.com/xenwiki/RHEL6Xen4Tutorial Every thing went just fine, yet virbr0 won''t work and when I run brctl show I get the following error message: [root@pe1950 ~]# brctl show bridge name bridge id STP enabled interfaces virbr0

Greetings: I am working with Xen 3.03 and CentOS 5.5 on a physical machine and have configured Centos 5.5. in a virtual machine (Domain-1). In the real machine I have two network cards eth0 (IP: 10.10.10.1) and eth1 (IP: 192.168.1.1). The virtual machine (IP 192.168.1.2) should come (gateway) for the network card eth1. Currently does not. The virtual machine sees only the interface virbr0 How do

On 07/31/2013 11:01 AM, Jorge Fábregas wrote: > That is, the first network can reach all other networks (just because it > happens to be the first one defined). Is this the intention (only > default can talk to the others but not the other way around)? *Bump* I found this excellent post by Daniel Berrange: http://www.redhat.com/archives/libvir-list/2010-June/msg00762.html ...which

On 08/13/2013 06:31 AM, Laine Stump wrote: > Correct. That is a known problem since 2008: > > https://bugzilla.redhat.com/show_bug.cgi?id=453580 Thanks Laine for confirming it is a known issue. I googled it a lot but couldn't find that bugzilla entry. Do you know if this is still the case with the upcoming Fedora 20 & firewalld? (these rules are still being created)? >

On 11/12/2014 08:21 AM, Sagar Shedge wrote: > Hi, > > I got this NOTE on most of the link. But I am not getting reason for this. > Why someone should not add physical NIC to virbr0. Well, for a start, if you do that then the dhcp server that is running on virbr0 will be exposed to the physical network and begin answering DHCP requests from devices out in the real world. And then you

On 12.11.2014 14:55, Sagar Shedge wrote: > Hi , > > > I have two virtual machines VM1 and VM2. Then I have added eth0 of my > VM to 'default' network. > > Use case :- > I want to monitor all traffic on virbr0('default' network). > > Steps followed :- > 1. Add VM1 eth0 to virbr0 > 2. Add VM2 eth1 to virbr0 > 3. brctl setageing ovsbr0 0 ..(To

On 24.11.2014 13:51, Sagar Shedge wrote: > Hi Michal, > > Ok. > > Please can you try this scenario once you get free time. Currently my > hypervisor is Ubuntu 14.04 LTS 3.13.0-24-generic. > Meanwhile I will try this with some other Linux kernel also. > > Mail me if you find anything related to this. It will be helpful. > Thanks for reply. I don't think other

On Tuesday, 9 October 2018 20:16:04 CEST Nir Soffer wrote: > I'm trying to build fedora-27 image for testing uploads: > > $ virt-builder fedora-27 -o /var/tmp/fedora-27.img > ... > [ 25.2] Opening the new disk > virt-builder: error: libguestfs error: bridge ‘virbr0’ not found. Try > running: > > brctl show > > to get a list of bridges on the host, and

On Wed, Oct 10, 2018 at 02:27:44PM +0300, Nir Soffer wrote: > On Wed, Oct 10, 2018 at 10:18 AM Pino Toscano <ptoscano@redhat.com> wrote: > > > On Tuesday, 9 October 2018 20:16:04 CEST Nir Soffer wrote: > > > I'm trying to build fedora-27 image for testing uploads: > > > > > > $ virt-builder fedora-27 -o /var/tmp/fedora-27.img > > > ...

On 15.10.2015 20:23, George Trakatelis wrote: > Hi all, > > I want to set the advertised value of MTU > for virbr0 interface on a Fedora 21 host to 1454 > to accommodate the installation of new VMs for testing purposes. > The aforementioned host is an OpenStack VM actually, > which explains the need for a lower than 1500 MTU. > > I noticed Pieter Hollants'

On Wed, 2016-03-09 at 14:15 +0000, Andrei Perietanu wrote: > I am building a custom Linux image which includes KVM and will be installed on multiple machines. By default when > installing libvirt you get a 'default network' which adds a 'vrbr0'. > I found several tutorials online about removing this 'virbr0' but I would like to not have it in the first place. >

On Wed, 2016-03-09 at 14:53 +0000, Andrei Perietanu wrote: > > On Wed, Mar 9, 2016 at 2:49 PM, Andrea Bolognani <abologna@redhat.com> wrote: > > On Wed, 2016-03-09 at 14:15 +0000, Andrei Perietanu wrote: > > > I am building a custom Linux image which includes KVM and will be installed on multiple machines. By default when > > > installing libvirt you get a

libvirt version: 3.4.0 architecture: x86_64 ubuntu16.04-server hypervisor: kvm,qemu when install libvirt from ubuntu distribution deb install libvirt, a virtual bridge virbr0 will be create . But when I build libvirt from souce code, how can I create a virbr0. If I want create another virtual bridge ,How can I create and start the virtual bridge. Thanks

I set libvirtd off to disable virbr0 and set my vif's to point to eth0 as their bridge and this is working well for local connectivity. Are there any ramifications to doing this the way I did? Thanks! jlc

Interested in bonding my 2 on board nics along with my add on card NIC for a total of 3. How would this work with the virtual machines? My eths/IPs ---> bond0, bond0:1, etc ---> ? ----> virbr0,virbr0:1 (each machine to have own IP address, one machine may have some virtual sites needing more than one ip, so multiple ips added to mix..) add something to the bond0 file, or just leave

Hi, In my office I have an HP Proliant server running CentOS 7. It's a minimal install without GUI. The machine has two network interface cards, and for now it's acting as gateway/firewall, and it's running ntpd, Dnsmasq and Rsnapshot. I'd like this machine to also be a KVM virtualization host, so I installed qemu-kvm and libvirt. The interface facing the LAN is enp3s0, so I