similar to: changue bridge name, libvirt refuses to take new name

hi, - host: rhel6 - I created a guest rmdev2 (centos6) - undefined it - again created rmdev2 guest (centos6) now I get: [root at rmdev1 var]# virsh -c qemu:///system Welcome to virsh, the virtualization interactive terminal. Type: 'help' for help with commands 'quit' to quit virsh # list --all Id Name State ---------------------------------- -

Laine I made the change and I can now ping across both bridges: br1 (192.168.0.0/24) and br1600 (192.168.1.0/24): br1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500         inet 192.168.0.110  netmask 255.255.255.0  broadcast 192.168.0.255         inet6 fe80::1e98:ecff:fe1b:276d  prefixlen 64  scopeid 0x20<link>         ether 1c:98:ec:1b:27:6d  txqueuelen 1000  (Ethernet)

Even more puzzling, I reverted back to the old configuration to confirm what I had seen and found that it works in one direction but not the other: i.e. from 192.168.0.110 to 192.168.0.120, but not the other way around. Must be something with my configuration....which I can follow up on. So, thanks again for your help. Richard On 12/3/19 11:36 AM, Richard Achmatowicz wrote: > Laine >

I am experimenting with routing tables to obtain a little understanding of how things work. I have a kvm hypervisor host (KVM1) with two physical Ethernet nics configured as bridges (br0 and br1). KVM1 br0 is configured with a public ipv4 address [x.y.z.42/24] and br1 is configured with a private ipv4 address [192.168.216.42/24]. A second kvm hypervisor, KVM2, is similarly configured albeit with

When I start my script: * - Creating classes on br1 for upload control ... * - tc class add dev br1 parent 2:0 classid 2:46 hfsc ls m1 576.0Kbit d 2000ms m2 192.0Kbit ul m2 384Kbit ... [ ok ] * - tc class add dev br1 parent 2:46 classid 2:47 hfsc sc umax 1500b dmax 30ms rate 80Kbit . [ ok ] * - tc class add dev br1 parent 2:46 classid 2:48 hfsc ls m2 152.0Kbit ul m2 152.0Kbit

On 11/26/19 11:07 PM, Richard Achmatowicz wrote: > Hello > > I have a problem with attaching VMs to a VLAN interface. > > Here is my setup: I have several physical hosts connected by a physical > switch.  Each host has two NICs leading to the switch, which have been > combined into a team, team0. Each host a has a bridge br1, which has > team0 as a slave. So

Hi, I''m setting up my first xen machine, and I''m trying to setup two Virtual Machines, each mapped to a physical adapter on a different network. The virtual machine mapped to xen-br0 and eth0 works fine. However, when I bring up a VM with this configuration file: ----------------- name = "test77" kernel = "/boot/vmlinuz-2.6.11.12-xenU" root =

I have been looking at this problem on and off for a considerable period. Given my lack of knowledge I have been unable to resolve this quickly and in consequence it has been constantly shoved to the background as other issues arise. Here is the situation: I have two dual-homed kvm hosts both running CentOS-6.7 and identically configured. These are connected to the same LAN segment via

Hi all, I'm currently in the process of building a 2-Node libvirt/KVM Cluster and ran into some issues regarding the network connectivity of our virtual machines. Our setup seemed to work fine, we were able to browse to Google and our own company website and some others from within the VM. Then we tried microsoft.com to download some Windows iso images from MS Partner Network. The page

[desktop] ----- lan ----eth0 [notebook] eth1 192.168.?.? ` ----- wlan ---- [speedport(hub and router)] -- internet 192.168.2.x So on my laptop I have eth0 beeing lan, eth1 beeing wlan ethernet card. When only using eth0/1 everything is fine. Now I want to be able to use internet from both [desktop] and [notebook]. Typically you set up a bridge with

Maybe my google-fu is failing me, but I have spent the past couple hours looking at how to add a vnet? Device to my KVM host running CentOS 6, and for the life of me I can't get this going. >From all my research if I want to add a device I should just do 'brctl addif br1 vnet14' if I want to add a vnet14 to bridge br1. When I do this, I get: # brctl addif br0 vnet14

Hi All, I have two kvm guests running with a bridged configuration bound separately to br0 and br1 on my Fedora 15 host. I'm attempting to create some nwfilter rules on br1 and am running into a bunch of problems that have me scratching my head. libvirt version: 0.8.8-7 What I've noticed on the second host is as follows: - Most all nwfilter rules that I create for the host on br1

hi, i have the following situation. my host system is running debian lenny and kvm. i have 2 ethernet interfaces of which i like to use eth0 for administration of the server itself without traffic from any guest systems. eth1 is connected to a different switch where i have numerous vlans. i have successfully setup a guest running virt-install using a bridge interface on the host system. here

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

I've spent some hours on this without success - any help greatly appreciated. I've just done a new RHEL6 setup, with a KVM guest (first time). The basic installation works fine until I start libvirtd; at this point, the host machine loses access to the external network: step 1: ping from host to network works; external machine on network can ping both eth0 and br1 on the host step

Hello I have a problem with attaching VMs to a VLAN interface. Here is my setup: I have several physical hosts connected by a physical switch.  Each host has two NICs leading to the switch, which have been combined into a team, team0. Each host a has a bridge br1, which has team0 as a slave. So communication between hosts is based on the IP address of bridge br1 on each host. Up until

Hi everybody ! I'll try to explain first what I would like to do with the functionalities of tap and bridge interfaces, qemu, some isos(I used slax(slackware live cd)) and the forwarding mechanisms of the Linux kernel. I'd like to simulate such a network: Internet | (eth0:@public address) * host * | br0 (@192.168.0.254)

Hi Laine What you have suggested sounds eminently reasonable. Thanks for your advice. I'm going to give it a shot and report back. Richard On 11/27/19 1:38 PM, Laine Stump wrote: > On 11/26/19 11:07 PM, Richard Achmatowicz wrote: >> Hello >> >> I have a problem with attaching VMs to a VLAN interface. >> >> Here is my setup: I have several physical hosts

Hi, I'm not sure but I think I suffer under the same problem with a bit different setup with squeeze testing and xen 4.0rc5. In fact I'm using bridges in the dom0 and the connections to the domU get lost sporadically. In don't see where's a solution to the problem... Is it now a bug? When it's an iptables bug, where's the corresponding bug in the iptables bugtracker

Hello, I?m trying to configure a CentOS 7 server to act as a host for a bunch of virtual servers (KVM). I have an 802.3ad bonded Ethernet connected to the server with a bunch of tagged VLANs. I want to be able to build a bridge interface on the server for each VLAN and then attach that to the bond interface and the virtual clients. I also want to attach a host interface to one of the VLANs