Configuring IPV6 for RedHat 7:
Assuming we want to create a connection to work with eth1 :
#nmcli con add con-name eth1 type Ethernet ifname eth1
We can then check to see the created connection:
#nmcli con show
We then can assign the connection an IPv6 address:
#nmcli con mod eth1 ipv6.addresses fddb:fe2a:ab1e::c0a8:64/64
Make sure the interface is up:
#ifup eth1
Test Pingability:
#ping6 –I eth1 fddb:fe2a:ab1e::c0a8:64/64