How to setup IPv6 on KVM VPS from unihost.com (for Linux CentOS 5.x/6.x).

To setup IPv6 do the following steps:
Edit /etc/sysconfig/network. file using text editor (vi, vim, nano, mcedit etc.). Add or change the lines:

HOSTNAME=localhost.localdomain
NETWORKING=yes
NETWORKING_IPV6=yes

If this line was already created make sure it reads above.

Edit /etc/sysconfig/network-scripts/ifcfg-ethX file: “X” –
the ID of the network interface (usually “0”). Add the following lines to the file:

IPV6INIT=yes
IPV6ADDR=IPv6_Address (how can I find a list of IPv6 addresses allocated to my VPS, see Appendix 1)
IPV6DEFAULTGW=Gateway_IPv6_Address (the gateway addresses for each of our servers are specified in Appendix 2)

Make sure the file reads bellow:

DEVICE=eth0
BOOTPROTO=dhcp
NM_CONTROLLED=no
ONBOOT=yes
TYPE=Ethernet
IPV6INIT=yes
IPV6ADDR=IPv6_Address (how can I find a list of IPv6 addresses allocated to my VPS, see Appendix 1)
IPV6_DEFAULTGW=Gateway_IPv6_Address (the gateway addresses for each of our servers are specified in Appendix 2)

Restart the network:

service network restart

Or

/etc/init.d/network restart

After restart run the command:

route -A inet6 add default gw Gateway_IPv6_Address (the gateway addresses for each of our servers are specified in Appendix 2)

Appendix №1

To see a list of available IPv6 addresses allocated to your VPS, log into the VPS control panel (https://vps.unihost.com) and go to “Network” tab:

How to setup IPv6 on KVM VPS (CentOS 5.x/6.x)

Appendix №2

IPv6 gateway addresses to specify a route by default:

solus012s.unihost.com: 2a01:4f8:192:2b3::2 / 64
solus014s.unihost.com: 2a01:4f8:200:21a9::2 / 64
solus016s.unihost.com: 2a01:4f8:201:528b::2/ 64
solus017s.unihost.com: 2a01:4f8:202:500d::2 / 64
solus018s.unihost.com: 2a01:4f8:211:a48::2 / 64
solus019s.unihost.com: 2a01:4f8:211:208e::2 / 64
solus020s.unihost.com: 2a01:4f8:131:3f5::2 / 64

The name of your server is specified in the Node line

How to setup IPv6 on KVM VPS (CentOS 5.x/6.x)

Tagged: