Configuring IPv6 OSPFv3 with ClusterXL

From R80.20 and higher, OSPFv3 is supported on ClusterXL. OSPFv3 requires Link-Local VIP support, because it uses the VIP as the source IP address in communication with the OSPF neighbors. An IPv6 Link-Local address is automatically added to each interface when IPv6 is enabled on Gaia. You can override the automatic Link-Local address with manual configuration. Manual and automatic configuration of Link-Local-VIP is possible on every interface that has a global VIP address.

To enable OSPFv3 on an interface:

1. Set a Link-Local address on the interface. To manually configure a Link-Local VIP, in Expert mode, run:
   • In Gateway mode:

     cphaconf set_link_local <interface_name> <link_local_IPv6_VIP>

   • In VSX mode:

     cphaconf set_link_local –vs <VSID> <interface_name> <link_local_IPv6_VIP>

2. Do one of these actions:
   • Install the Access Control Policy

   Or

   • Run cpstop and then cpstart
3. Check the state of the cluster member interfaces.

   Run: show cluster interfaces all

   Output example:

1. Enable OSPFv3 on the interface with the Link-Local VIP. In Gaia Clish, run:

   set ipv6 ospf3 interface <interface_name> area backbone on save config

Note - In automatic configuration, when an IPv4 address changes, the IPv6 Link-Local address changes as well. In manual configuration, when the IPV4 adderess changes, the manually configured IPV6 address persists.

To see the OSPFv3 interfaces:

To back up the Link-Local VIP configuration:

Save a copy of the $FWDIR/conf/linklocal_local.vip file.

To remove a Link-Local VIP:

1. In Expert mode, run:
   • In Gateway mode:

     cphaconf delete_link_local <interface_name> <cluster_IP>

   • In VSX mode:

     cphaconf delete_link_local –vs <VSID> <interface_name> <cluster_IP>

2. In Gaia Clish, run:

   set ipv6 ospf3 interface <interface_name> area backbone off

   save config