CentOS – IPv6 interface

You need to update and configure following files for IPv6 configuration:

1. Edit: /etc/sysconfig/network

And append following line, to enable in systemwide the ipv6 protocol:

NETWORKING_IPV6=yes

2. Edit: /etc/sysconfig/network-scripts/ifcfg-eth1 (or your interface number)

And append following line, to enable ipv6 on interface and the address/gateway if you use static routing:

IPV6INIT=yes
IPV6ADDR=2001:1418:0193:000B::210
IPV6_DEFAULTGW=2001:1418:0193:000B::251

Save, close and restart network service:

# service network restart

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