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OpenVZ – RHEL/CentOS/Scientific 6.5 Container Networking Bug

December 22, 2013 , 7:44 pm

opnvzIn this article, I would like to discuss an issue that I have faced recently. We all knew that Centos  has released  latest version 6.5 with more features. You can get the complete details at   Openvz installed in this version is having some network issues which is a bug with this version and can rectified. I got this issue when I upgraded vzkernel to  2.6.18-348.16.1.el5.028stab108.1  from stab101.1

There wont be any  active network interfaces. You can verify it using ifconfig


[[email protected] ~]# ifconfig
[[email protected] ~]#

I have tried to restart the network and got the error given below.

[[email protected] log]# service network restart
Shutting down loopback interface:                          [  OK  ]
FATAL: Module ipv6 not found.
Bringing up loopback interface:  RTNETLINK answers: Operation not supported
Failed to bring up lo.
Bringing up interface venet0:  RTNETLINK answers: Operation not supported
Failed to bring up venet0.
FATAL: Module ipv6 not found.


Openvz doesnt have an official fix yet. Best way to fix this issue would be downgrading iproute package.

Download iproute to your hardware node and move it to corresponding vps


[email protected] [~]# wget

[email protected] [~]# mv iproute-2.6.32-23.el6.x86_64.rpm  /vz/private/VID/root

[email protected] [~]# rpm -Uvh –force iproute-2.6.32-23.el6.x86_64.rpm

if a latest version is already installed, remove using

[email protected] [~]#rpm -e iproute-2.6.32-23.el6_5.x86_64.rpm -nodeps

and try installing using

[email protected] [~]# rpm -Uvh –force iproute-2.6.32-23.el6.x86_64.rpm

[email protected] [~]# service network restart

VID should be replaced with your container ID.


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