similar to: KVM, network bridge with 2 NIC environment

I need to allocate public IP address to two guest os. I have only 2 network card Interface on server. say eth0 and eth1. I set eth1 a public IP address. so it should in # vi /etc/sysconfig/ifcfg-eth1 DEVICE=eth1 BOOTPROTO=static HWADDR=00:1a:4d:83:ad:00 BROADCAST=202.127.29.0 IPADDR=202.127.29.5 NETMASK=255.255.255.0 NETWORK=202.127.29.0 ONBOOT=yes TYPE=Ethernet Question 1: do I have to

>To: Discussion about the virtualization on CentOS ><centos-virt at centos.org> Message-ID: ><448255702.63.1260531144350.JavaMail.root at mail.chi.ldsys.net> >Content-Type: text/plain; charset=utf-8 >----- "rewing" <rewing at howfortune.com> wrote: >> I need to allocate public IP address to two guest os. >> > >I have only 2 network card

I'm having trouble with the bridged network setup. I'm new to kvm, but I got a window xp sp2 guest set up without trouble a few days ago. I followed the instructions in the RH virtualization guide, and all was fine until I had to reboot the host machine a few days later. Then, I lost networking altogether on the host machine. I lost track of all the things I tried, but finally got

I have a question about software bridge setup (initscripts). If one sets up a bridge network: ifcfg-eth0: DEVICE=eth0 ONBOOT=yes BRIDGE=br0 HWADDR=xx:xx:xx:xx:xx:xx ifcfg-eth1 DEVICE=eth1 ONBOOT=yes BRIDGE=br0 HWADDR=xx:xx:xx:xx:xx:xx ifcfg-br0 DEVICE=br0 TYPE=Bridge BOOTPROTO=static BROADCAST=nnn.nnn.nnn.255 IPADDR=nnn.nnn.nnn.nnn NETMASK=255.255.255.0 NETWORK=nnn.nnn.nnn.0 ONBOOT=yes Deep

I have centos 64 6.5 I installed bridge-utils I installed tunctl I added BRIDGE=br0 to ifcfg-eth0 I created ifcfg-br0 with correct settings I did service network restart and I get an error about br0 not present. When I plug in the second network (USB to ethernet) It detects as eth1 What do I need to change to get this to work. Thanks, jerry

hello all, I have been trying to set-up bridged network with VLAN and not able to succeed as many tutorials address only single NIC. I am trying to setup 2 guests (backtrack instance) each guest has NIC1 and NIC2. following is snippet for guest1 I am not able to get 192.168.0.2 address back on guest eth0. VIRT-MANAGER GUI : guest1-lan details radio button left side panel NIC1

Greetings, I'm attempting to get several virtual machines setup on a Fedora19 host system, with the traditional bridge network devices (br0, br1, etc). I've done this many times before with older versions of Fedora (16, 14, etc), and it just works. However, for reasons that I cannot figure out, the bridge doesn't seem to be working in Fedora19. While I can successfully connect to

1.. Is it even possible? Every example I've seen has bridged eth* rather wlan*. 2.. If it helps here are my scripts: $ more /etc/sysconfig/network-scripts/ifcfg-wlan0 ESSID="snip" MODE=Managed KEY_MGMT=WPA-PSK TYPE=Wireless BOOTPROTO=dhcp DEFROUTE=yes PEERDNS=yes PEERROUTES=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME=wlan0 UUID=2b508481-ec01-4311-8903-af7aaeb9879d ONBOOT=yes

I have decided to migrate my latest KVM server to CentOS 6.0 and am beginning to get a little frustrated with some issues that worked perfectly in 5.6. Right now I've given up on getting virbr0 and NAT to work, but now I need networking bridging to work, but nothing seems to fix the issue. I have not had much experience with troubleshooting KVM so could really use some pointers on resolving

hi all, (this events ocurred before my previous mail about the uuid incident) so, I installed a vm host: rhel6 guest: centos6 network: bridge (br0, eth1 as slave) but then, I changed the name of the bridge from br0 to br1 (because br1<->eth1 seems pretty than br0<->eth1) so: - mv /etc/sysconfig/network-scripts/ifcfg-br0 /etc/sysconfig/network-scripts/ifcfg-br1 - edited

Bernd wrote: > > Laine wrote: > > > -----Original Message----- > > From: sendmail [mailto:justsendmailnothingelse@gmail.com] On > Behalf Of > > Laine Stump > > Sent: Monday, March 16, 2015 4:12 PM > > To: libvirt-users@redhat.com > > Cc: Lentes, Bernd > > Subject: Re: [libvirt-users] still possible to use traditional bridge > > 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

Hi all, Having a 4 NIC server, I want to bridge eth2 and eth3, with a bridge named br0. Searching the web I only found about creating a file /etc/sysconfig/network-scripts/ifcfg-br0, but did not find where to explicitely list what ports will be bridged. Where is it configured? Thank you. -- RMA.

Hello. I desire to get bridge network working using virt-manager. Centos 7 and centos 7 guest. >From researching I think I need to have a ifcfg-br0 file like this ? cat ifcfg-br0 DEVICE=nm-bridge0 STP=no TYPE=Bridge BOOTPROTO=none IPADDR=192.168.1.8 PREFIX=32 GATEWAY=192.168.1.1 IPV6INIT=no NAME=br0 ONBOOT=yes DELAY=0 Is that for sure needed ? The use that nm-bridge0 as the network name? I

Hi, I'm trying to configure a network bridge over a bonding without any success. Here is my configuration: ifcfg-eth0: DEVICE=eth0 HWADDR=00:1E:C9:E8:3F:E5 ONBOOT=yes USERCTL=no MASTER=bond0 SLAVE=yes ifcfg-eth1: DEVICE=eth1 HWADDR=00:1E:C9:E8:3F:E7 ONBOOT=yes USERCTL=no MASTER=bond0 SLAVE=yes ifcfg-bond0: DEVICE=bond0 ONBOOT=yes BRIDGE=br0 USERCTL=no ifcfg-bridge0: DEVICE=br0

Running CentOS 5.4 x64. Have successfully bridged eth2 with br2 by following the instructions here: http://wiki.libvirt.org/page/Networking (under the RHEL section) Have been running several KVM VMs successfully via this bridge. I am now trying to bridge additional interfaces by using the same routine. Each bridge is named to correspond with the ethX device its bridged with. Example of

Laine wrote: > -----Original Message----- > From: sendmail [mailto:justsendmailnothingelse@gmail.com] On Behalf > Of Laine Stump > Sent: Tuesday, March 17, 2015 3:57 PM > To: libvirt-users@redhat.com > Cc: Lentes, Bernd > Subject: Re: [libvirt-users] still possible to use traditional bridge network > setup ? > > On 03/16/2015 01:07 PM, Lentes, Bernd wrote: > >

For the record - I figured this out so am sharing the result for posterity: The issue was that I didn't follow the instructions literally. Since, once booted, my primary NIC name was "em1" I assumed I had to create an initscript called ifcfg-em1 rather than ifcfg-eth0 as described in the doc. Once I renamed that script to ifcfg-eth0 (and changed the DEVICE value in the file to

Laine wrote: > -----Original Message----- > From: sendmail [mailto:justsendmailnothingelse@gmail.com] On Behalf > Of Laine Stump > Sent: Monday, March 16, 2015 4:12 PM > To: libvirt-users@redhat.com > Cc: Lentes, Bernd > Subject: Re: [libvirt-users] still possible to use traditional bridge network > setup ? > > On 03/16/2015 10:08 AM, Lentes, Bernd wrote: > >

I put a bridging firewall together last winter (with some help) and have it= in production in front of a couple windows web and mail servers for going = on 6 months now. I used Fedora C1 with 2.4.22 kernel and 0.9.6 bridge-utils= . The bridge has solved a lot of security headaches. I use a modified start= up script written by David Whitmarsh that has worked really well. http://ww=