similar to: What is vibr0 Network interface and what is it used for

Hi, I ''ve got a CentOS 5.2 server running xen 3.0 with 2 DomUs also running CentOS 5.2. All my boxes are up-to date. I''m experiencing trouble with networking. Dom0 can reach the outside world when no DomU are started. It can also reach the outside world when only one DomU is running. The troubles begin when I start the second DomU. At first, this new DomU, called DomU2,

Hi, I tried this post on the Xen list first with no answer. I have 4 machines and 3 of which (all different) have no network access when booted into Xen. I tried using Fedora Core 8 and it produced the same results. Is it normal for the virbr0 interface to take an arbitrary IP? How does it decide what to use? An ifconfig when booted into Xen shows the following: eth0 Link encap:Ethernet

Hi All, I am facing an issue regarding communicating a value from outside to a Guest OS (linux, solaris and windows) launched on Xen Server. I did went through this thread, but It was not completely clear. http://lists.xensource.com/archives/html/xen-users/2006-07/msg00473.html My question is - Is there a way in Xen, through which I can communicate a value from outside to a Guest OS (linux,

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

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

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

Hi ! I have install the xen4+centos5 on my server following the post of the kernel version is 2.6.32.27 which is download from git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git But after I reboot the server ,and run the "ifconfig", whose output likes the following [root@localhost scripts]# ifconfig eth0 Link encap:Ethernet HWaddr 00:15:C5:EB:96:C3

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

Hi, I have Xen 3.0.3 installed on CentOS 5.5 with 2 paravirtualized domU''s configured to use the default bridge networking and am having networking issues. If I boot the computer fresh I am able to ping dom0 and can SSH into it and start the domU''s. The following ping snippet demonstrates the problem. The first group of "Destination Host Unreachable" is while the

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

Hi all, I just noticed that my two nics that are bonded via mode 0 are showing the same mac addy in ifconfig. Is this normal? In syslog I keep getting; kernel: pbond0: received packet with own address as source address Some guidance is appreciated before I dive in and troubleshoot. If I don't list the mac addy in my ifcfg-th# files, only one of the 2 nic comes up during boot.

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

Hi all, I try to update two clustered samba file servers. Right now samba 4.7.0 with ctdb is running on both of them. To update samba I stopped ctdb on one of the servers, and compiled and installed samba 4.7.1 with: ./configure --with-cluster-support --with-shared-modules=idmap_tdb2,idmap_ad,vfs_glusterfs --with-systemd Trying to start ctdb on the updated server fails with "

someone recommended that i should give br0 the same hardware address as eno2. I did that, and restarted the vm, and it still does not work. Here is my current host interface config: ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft

(If this is a double post, I apologize, my email client crashed when I first sent it) I need some help to configure a secure network on my Xen server. I have been looking online and it seems a I need a routed network. But I am having a terrible time implementing it. My setup: Xen 3.4.2 CentOS 5.5 Dom0 1 NIC (eth0) All guests will be HVM What I want to do is something similar to a firewall

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         

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         

On Friday 22 November 2013 04:19 PM, Sherin A wrote: > On Friday 22 November 2013 01:33 PM, Sherin A wrote: >> On Friday 22 November 2013 01:24 PM, Gao feng wrote: >>> On 11/22/2013 03:47 PM, Sherin A wrote: >>>> Hello, >>>> >>>> I am not able to see vrbr0 in my box. Can some one help me >>>> with this ? . I am trying

On Friday 22 November 2013 01:24 PM, Gao feng wrote: > On 11/22/2013 03:47 PM, Sherin A wrote: >> Hello, >> >> I am not able to see vrbr0 in my box. Can some one help me with this ? . I am trying KVM+libvirt and planing to use Routed mode. I hope this virbr0 must be up for using this . I can give an >> strace too. >> >> OS : Debian , kernel 3.12.0

I have these interfaces listed. eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.8 netmask 255.255.252.0 broadcast 192.168.3.255 inet6 fe80::e2d5:5eff:fe63:abe5 prefixlen 64 scopeid 0x20<link> ether e0:d5:5e:63:ab:e5 txqueuelen 1000 (Ethernet) RX packets 42411243 bytes 4701898681 (4.3 GiB) RX errors 0 dropped 156