[ipv6_test] Kernel is not compiled with IPv6 support

Applications IP Networking
1

Hello, i tried to enable IPv6 networking and after service network restart i seen these messages:

FATAL: Error inserting ipv6 (/lib/modules/2.6.18-348.16.1.el5.028stab108.1/kernel/net/ipv6/ipv6.ko): Device or resource busy
CRITICAL : [ipv6_test] Kernel is not compiled with IPv6 support
Bringing up loopback interface:                            [  OK  ]
Bringing up interface eth0:  FATAL: Error inserting ipv6 (/lib/modules/2.6.18-348.16.1.el5.028stab108.1/kernel/net/ipv6/ipv6.ko): Device or resource busy
CRITICAL : [ipv6_test] Kernel is not compiled with IPv6 support
                                                           [  OK  ]

ping6 ipv6.google.com

returns:

Im amateur, can you please suggest how to fix this IPv6 support kernel issue? Please if you get idea on commands i need to do, i will do it.

[root@CentOS-58-64-minimal /]# cat vi /etc/sysconfig/network | grep 6;
cat: vi: No such file or directory
HOSTNAME=CentOS-58-64-minimal
NETWORKING_IPV6=yes
IPV6FORWARDING=yes
IPV6_DEFAULTDEV=eth0
IPV6_DEFAULTGW=2a01:04f8:0191:4150:0000:0000:0000:0000
# defaultgw was 2a01:4f8:191:4150::2/64
IPV6_AUTOCONF=yes
[root@CentOS-58-64-minimal /]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 | grep 6;
HWADDR=50:46:5d:9f:f8:bf
IPADDR=144.76.40.81
SCOPE="peer 144.76.40.65"
IPV6INIT=yes
IPV6ADDR=2a01:4f8:191:4150::2/64
IPV6_DEFAULTGW=fe80::1
IPV6_DEFAULTDEV=eth0
[root@CentOS-58-64-minimal /]# cat /etc/sysctl.conf | grep 6;
# ipv6 settings (no autoconfiguration)
net.ipv6.conf.default.autoconf=0
net.ipv6.conf.default.accept_dad=0
net.ipv6.conf.default.accept_ra=0
net.ipv6.conf.default.accept_ra_defrtr=0
net.ipv6.conf.default.accept_ra_rtr_pref=0
net.ipv6.conf.default.accept_ra_pinfo=0
net.ipv6.conf.default.accept_source_route=0
net.ipv6.conf.default.accept_redirects=0
net.ipv6.conf.default.forwarding=1
net.ipv6.conf.all.autoconf=0
net.ipv6.conf.all.accept_dad=0
net.ipv6.conf.all.accept_ra=0
net.ipv6.conf.all.accept_ra_defrtr=0
net.ipv6.conf.all.accept_ra_rtr_pref=0
net.ipv6.conf.all.accept_ra_pinfo=0
net.ipv6.conf.all.accept_source_route=0
net.ipv6.conf.all.accept_redirects=0
net.ipv6.conf.all.forwarding=1
net.ipv6.conf.all.proxy_ndp=1
net.ipv6.bindv6only=1
net.ipv4.ip_conntrack_max=32760
[root@CentOS-58-64-minimal /]# uname -a
Linux CentOS-58-64-minimal 2.6.18-348.16.1.el5.028stab108.1 #1 SMP Tue Aug 27 13:02:53 MSD 2013 x86_64 x86_64 x86_64 GNU/Linux
2

What's your system? Are you in a virtual server?

3

Thx, i added new info to the first post. It is Dedicated server with OpenVZ kernel.

4

That you have a dedicated server doesn't mean it's not a virtual server too. :wink: OpenVZ is a kernel for virtualization. Running in a virtual server means outside things may have control over what you can do.

You may need to enable ipv6 in /etc/vz/vz.conf

1 Like
5

Corona688: I mean its physical server on which these errors appears.
I tried to look into /etc/vz/vz.conf and its there.

## Enable IPv6
IPV6="yes"

---------- Post updated at 08:11 PM ---------- Previous update was at 08:07 PM ----------

IT WAS FIXED. Server needed to restart. Not sure why...

1 Like
6

I suspect that file is checked when the system boots, not all the time. There might have been some service you could have restarted instead, but openvz's not my thing, I wouldn't know.

7

A virtual server runs on physical hardware, yes.