How to configure IPv6 on CR?

Shyva Dev

Updated July 09, 2026 11:32

Applicable to:

Add the IPv6 details on the OVS interface br-ext and restart the network service.

Connect to the CR via SSH.
Configured IPv6 on CentOS 7 CR by modifying the file /etc/sysconfig/network-scripts/ifcfg-br-ext with the below data:

CONFIG_TEXT:
IPV6INIT=yes
IPV6ADDR=2400:54a0:20b0::2
IPV6_DEFAULTGW=2400:54a0:20b0::1

# systemctl restart network

For RedHat based OS:

Connect to the CR via SSH.
Configure IPv6 on most RedHat based Compute Resources by modifying the file /etc/NetworkManager/system-connections/ovs-if-br-ext.nmconnection with the below data:
CONFIG_TEXT: [ipv6]
addr-gen-mode=default
address1=2a01:4f9:6a:48a3::2/64,fe80::1
dns=2a01:4ff:ff00::add:1;
Then restart the "NetworkManager"
# systemctl restart NetworkManager