similar to: How can I define a network using an exist host bridge

Date: Thu, 22 Mar 2012 11:43:03 -0700 Subject: Re: [libvirt] Problem with Open vSwitch and dnsmasq From: aatteka at nicira.com To: dano1988 at hotmail.it CC: libvir-list at redhat.com; roberto.sassu at polito.it; paolo.smiraglia at polito.it; dev at openvswitch.org On Thu, Mar 22, 2012 at 11:11 AM, Daniele Milani <dano1988 at hotmail.it> wrote: I think I could try the first solution.

Hello everybody, i've defined a simple network, with no dhcp. I'd like to use dnsmasq only as a dns server. $ virsh net-dumpxml basicswitch <network> <name>basicswitch</name> <uuid>60f491d2-d6c4-6b57-8a50-081cace8dedc</uuid> <forward mode='nat'/> <bridge name='virbr1' stp='on' delay='0' /> <ip

I am using a custom qemu to launch a vhost enabled VM. The qemu doesn't use the default "/dev/vhost-net" directory as character device. Due to this I am getting the error: qemu-system-x86_64: -netdev type=tap,id=net1,script=no,downscript=no,ifname=port3,vhost=on: vhost-net requested but could not be initialized ​Is there a way to tell libvirt to ​avoid using the default

Hi all, thanks so far for your time and ideas. Please find the gdb output and also the debug-output of libvirt (as requested by Michal Privoznik and Laine Stump) here: https://paste.xinu.at/m-gPSHl/ On 10/19/2016 01:58 AM, Michal Privoznik wrote: > Those "Network is already in use by interface virbr1" error messages > worry me. Is the bridge active before you start libvirtd? If

Hi. I have a machine with a local DHCP server and a couple of virtual networks and I've configured the server for each virtual interface, so that I would be able to install VMs on the corresponding subnets using PXE. The problem is that the two DHCP servers (my local server and dnsmasq) are conflicting with each other causing the boot process to either fails or takes ages untill a VM can

(Cc'ing to libvirt-users at redhat.com) On 03/22/2012 02:43 PM, Ansis Atteka wrote: > > > On Thu, Mar 22, 2012 at 11:11 AM, Daniele Milani <dano1988 at hotmail.it > <mailto:dano1988 at hotmail.it>> wrote: > > I think I could try the first solution. Can you explain me how do > I create the port used by dnsmasq? > > For example, is it correct

Hi, I have some guests running in the "default" network (virbr0) and I've also created a similar (NAT) network (virbr1). Therefore, the FORWARD chain for the CentOS 6.4 host looks like this: http://fpaste.org/29229/75281379/ ...where line 3-7 are related to virbr0 and 8-12 to virbr1. My 2 questions: 1) I've noticed that I can ping from a guest within virbr0 to any guest on

Hi everyone. Those are the iptables forwarding rules associated with the two virtual networks on my machine: ----------------------------------------------------------------------------------------- -A FORWARD -d 192.168.100.0/24 -o virbr1 -m state --state RELATED,ESTABLISHED -j ACCEPT -A FORWARD -s 192.168.100.0/24 -i virbr1 -j ACCEPT -A FORWARD -i virbr1 -o virbr1 -j ACCEPT -A FORWARD -o

> Date: Thu, 22 Mar 2012 15:11:44 -0400 > From: laine at laine.org > To: libvir-list at redhat.com > Subject: Re: [libvirt] Problem with Open vSwitch and dnsmasq > > On 03/22/2012 09:10 AM, Daniele Milani wrote: > > Dear all, > > I have the following situation: > > -I replaced the standard bridge driver with the Open VSwitch one; > > I'm curious what

On Tue, Jun 20, 2017 at 10:05:19AM +0200, Martin Kletzander wrote: >On Tue, Jun 20, 2017 at 02:26:59AM -0400, Travis S. Johnson wrote: >>Hello, >> >>I came across an interesting problem in my home lab a few weeks ago as I'm >>prepping for my RHCE exam using Michael Jang study guide. I've been at this >>for days now, and I still can't wrap my head around

Hello, I came across an interesting problem in my home lab a few weeks ago as I'm prepping for my RHCE exam using Michael Jang study guide. I've been at this for days now, and I still can't wrap my head around how two or more virtual networks in default NAT configuration are even allowed to communicate with each other despite what the libvirt documentation said. Here's the

Hello, I have first a question (and then may be a problem), that I have difficulties to understand and eventually to investigate. On each of my guests VM, I see constantly a RX dropped number increasing , Even if the VM does nothing ! ifconfig eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.100.15 netmask 255.255.255.0 broadcast 192.168.100.255

Hi all, I have 3 guests (2-RHEL4 and 1 RHEL6) and have some issues regarding networking between them. The 2 RHEL4 system's use default bridge virbr0 and get ip's of range 192.168.122.0/24 (192.168.122.207, 192.168.122.167) I created another bridge (virbr1) with NAT forwarding (no dhcp). The network i choose was 192.168.100.0/24. And the third system (RHEL6) was assigned static ip-addres

Thanks, Mike. When running tcpdump on the VM I'm not seeing traffic unless it's explicitly intended for that particular VM, so no traffic between the other VMs is getting forwarded from the virtual interface to the "network appliance" VM. There is connectivity between the VMs on the private network and the "network appliance" VM which is acting as a gateway.

Hi Mike, Thanks for the info. I'd rather run monitoring such as tcpdump from the VM if possible and not the host as a simulation of a network appliance and with the intent eventually of giving others access to the VM and not the host. Here is the xml file for the private network: <!-- WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE OVERWRITTEN AND LOST. Changes to

Thanks Wangkai but libvirt infact pre-configures network tap devices and pre-opens /dev/vhost-net file and passes these to qemu as open, ready to use file descriptors. My issue is that my qemu requires that /dev/vhost-net directory is removed and it's kernel module be unloaded. Then it creates a vhost -net device using its own configuration. On 24 July 2014 07:35, Wangkai (Kevin,C)

Hi, I have a problem during my development of a backend. There are some target instructions with multiple outputs, for example an instructionX with 2 inputs and 2 outputs: def1, def2 = InstructionX op1, op2 The defs above must be allocated in consecutive target physical registers. Is it possible to describe the constraints with tablegen and let the register allocator get all the things

Hi all, I try to understand why the network bandwidth limits are not applied to my ubuntu 16.04.2 VM (qemu-kvm driver) and I would need some insights. I create my VM network with virsh and when I issue a dumpxml on my network, I can see that bandwidth limits are set: virsh # net-dumpxml nat_limit <network> <name>nat_limit</name>

hello list, creatig a virtual network via virt-manager fails. gentoo linux vanilla-sources 5.3.1 virt-manager 2.2.1 qemu 4.0 libvirt 5.5.0 the error output of Error creating virtual network: internal error: Failed to apply firewall rules /sbin/iptables -w --table filter --insert LIBVIRT_INP --in-interface virbr1 --protocol tcp --destination-port 67 --jump ACCEPT: iptables: No

(sorry, dont know how i put my posting into an reply to an other issue before, new posting to sepearte it, big sorry) Hello list, i updated on a gentoo system from libvirtd 2.5 to 3.1.0 Now my windows machines cant access internet. I did a virbr1 with virt-manager and route it to the eth0, works fine on 2.5 Hello list, i updated on a gentoo system from libvirtd 2.5 to 3.1.0 Now my