similar to: Upgrade of CentOS and libvirt: need help on configuring network

> I upgraded from CentOS 5.9 to CentOS 6.4. > > I try to reuse my virtual machines and am only partially successful: I > can run them, I just cannot get the network OK and need some help with that. > > > What I had in the past was pretty simple: both the host and the VM?s > used eth0 and each had an IP in the same subnet and could communicate freely. > With the

On Mon, May 08, 2017 at 03:35:19PM +0100, Daniel P. Berrange wrote: >On Sat, May 06, 2017 at 08:09:49PM -0400, Dan wrote: >> On Fri, May 5, 2017 at 4:29 PM, Nicolas Bock <nicolasbock@gmail.com> wrote: >> >> > Hi, >> > >> > I am running a webserver on the libvirt host and would like to add a >> > nwfilter such that a VM can access that

On Fri, May 5, 2017 at 4:29 PM, Nicolas Bock <nicolasbock@gmail.com> wrote: > Hi, > > I am running a webserver on the libvirt host and would like to add a > nwfilter such that a VM can access that server. The corresponding iptables > rule would look like this: > > iptables --append INPUT --in-interface virbr0 --destination 192.168.122.1 > --protocol tcp --dport 80

Hi, If I have these fragments in a domain definition, the guest will start with "eth0" assigned by dhcp to an address on my lan. Things seem to work according to the documentation I can find. <network> <name>direct-macvtap</name> <forward mode='bridge'> <interface dev='eth0' /> </forward> </network>

Hi, I'm currently migrating our old (colocated) mail server (running a [terribly outdated, I know] dovecot 1.1.11) to a new VPS (virtual private server). The old server was running gentoo linux (which is mainly the culprit of the old dovecot version: gentoo was too much trouble to keep updating); the new server will run debian (stable: 6). Debian currently has dovecot 1.2.15 in its

Gao feng @ 12/11/2013 01:49 AM: > I have a machine running libvirt lxc, > on this machine(host), the network configure looks like this > eth0 is the physical nic, virbr0 is the bridge libvirt created, and vnet0 > is the veth device created for libvirt lxc container. you can see, the eth0 > is a port of virbr0, and the ip is assigned on virbr0. > > [snip] > > And in

Yes, /etc/libvirt/qemu/networks/default.xml exists and has the contents: $ cat /etc/libvirt/qemu/networks/default.xml <network> <name>default</name> <bridge name="virbr0" /> <forward/> <ip address="192.168.122.1" netmask="255.255.255.0"> <dhcp> <range start="192.168.122.2"

On Sat, Jun 03, 2017 at 08:27:08PM -0400, Michael C Cambria wrote: > > >On 06/03/2017 05:47 PM, Martin Kletzander wrote: >> On Sat, Jun 03, 2017 at 05:20:47PM -0400, Michael C Cambria wrote: >>> I also tried stopping libvirtd, renaming both qemu-system-i386 and >>> qemu-system-x86_64, start libvirtd. Things get further along; dnsmasq >>> log messages show

Hi, I just tested in the lab the new CentOS 5.1 Xen and find out it breaks network connectivity, at least in my setup. It seems it is somehow making use of the 3.1 Xen version (altought I am not sure about that) but whatever changes it introduce is not documented at the location one would expect, the obvious new thing (at least for me) is this thing I will call out of guessing a virtual

I am running Fedora 16 64bit and installed libvirt. I have the VM running with arm emulation with this one issue I can't figure out. I used Virtual Machine Manager to manage the VM and can access its console there. The Ethernet appears to be eth1 and the guest can set an IP on it etc. However, I cannot see any traffic from the Host when dumping any of the interfaces. I've tried

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

I have CentOS 7 host. Two guests on bridge network setup by GUI and virt-manager. 1 CentOS 8 guest 1 Win 10 guest Both cannot access the host. They can other machines on the network. Guests can access the internet just not the host. I used virt-manager GUi to set up everything. Selected the eth0:macvtap and Bridge. I "desire" bridge network. If I select something else I get access to

I am the sysadmin in an office with an overabundance of Win95 machines and a few NT 4.0 workstations. All installs went relatively easy for logon scripts, wins, etc. I have run into a semi-serious problem with 2 of the 3 NT workstations. (All running the same service pack - 1). When trying to make a share from one of the 2 remaining workstations, I will recevie an error message saying that:

Hello, I have see that my machine have an interface that named virbr0. I have no idea what is it and what it using for ? I am not configured any IP address for it but I see it had an IP address and see it listed in firewall config. Can anyone give me an explanation about this or point me to a document that describe it ? My machine running CentOS 5.2 and do not have internet connection from

hello i have a server colocated in a datacenter with several external IP addresses available to use. the physical server is using one of these IPs, and i want to assign another, unused IP to the virtual machine. i thought i could just do this by editing the container's /etc/network/interfaces, setting a static IP address for eth0 much like i did for br0 on the host machine.... but doesn't

I have shifted some VM's to a new server running Quantal and have had a world of trouble. The first one was caused by issues with an apparently compiled in path in their apparmor version which forced VM pools to be in /srv or similar rather than where I wanted them. For now this was not a big issue, and thankfully the server where it would be a big time problem (there are individual drives per

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

Hi! I want to forward the port 3389 from the domU to the virtual server with ip address 192.168.122.77 with not success... I tried a lot of iptables rules with no luck so far. Is this possible? I take a look at other post and I don''t found an answer. By example: /sbin/iptables -t nat -A PREROUTING -p tcp -i xenbr0 --dport 3389 -j DNAT --to 192.168.122.77:3389 the virtual nic for the

This is my system info: Debian Release: 10.5 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 5.4.60-1-pve (SMP w/16 CPU cores) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) Shell: /bin/sh

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Gao feng @ 12/12/2013 10:18 PM: > I saw there are two bridge br0 and virbr0 in your host. which > bridge the libvirt uses? what's result of #virsh net-list ? well i don't quite understand bridges and their function, i'm kinda just following directions. br0 replaced eth0 though in my interfaces file according to this guide[1] i