Knowledgebase

We are providing /48 IPv6 subnets with the dedicated servers. Here we have described how to set up an IPv6 address on a Linux server.

Centos Server

1. Make sure that IPv6 is not disabled in the server configuration. So you need to check the sysctl file and add the entries below:
   
   # vi /etc/sysctl.conf
   
   

   net.ipv6.conf.default.disable_ipv6 = 0
   net.ipv6.conf.all.disable_ipv6 = 0

2. Then we need to enable the IPv6 in network file as well:
   
   # vi /etc/sysconfig/network
   
   

   NETWORKING_IPV6=yes

3. Add the entries in the active ethernet file, here I am doing it on eth0:
   
   # vi /etc/sysconfig/network-scripts/ifcfg-eth0
   
   Append the following lines in that file, make sure that IPv4 entries are not getting removed:
   

   
   IPV6INIT=yes
   IPV6ADDR=IPv6 IP-Address
   IPV6_DEFAULTGW=IPv6 Gateway Address

4. Restart the network service:
   
   # /etc/init.d/network/restart
   
   Debian/Ubuntu Server
   
   1. Access the Network interfaces file and add the following entries:
   
   # sudo nano /etc/network/interfaces
   

   
   auto eth0
   iface eth0 inet6 static
   address <IPv6 IP-Address>
   netmask 48
   gateway <IPv6 Gateway Address>

   
   2. Restart the networking service:
   
   # sudo /etc/init.d/networking restart
   or
   # sudo systemctl restart networking