OSPFv3 and IPv6
OSPFv3 (OSPF version 3) includes support for IPv6. Generally, all IP addresses are in IPv6 format instead of IPv4. However, OSPFv3 area numbers use the same 32-bit numbering system
as OSPFv2, as described in RFC 2740. Likewise, the router ID and area ID are in the same format as OSPFv2.
As with most advanced routing features on your FortiGate unit, IPv6 settings for dynamic routing protocols must be enabled before they will be visible in the GUI. To enable IPv6 configuration in the GUI, enable it in System > Admin > Settings.
For IPv6, the main difference in OSPFv3 is that, rather than using a network statement to enable OSPFv3 on an interface, you define OSPF6 (OSPF for IPv6) interfaces, which are bound to interface and area. This configuration must be done in the CLI, as follows (with sample interfaces and addresses):
config router ospf6
config area
edit 0.0.0.0
next
end
config ospf6-interface
edit “tunnel”
set interface “to_FGT300A-7”
next
edit “internal_lan”
set interface “port1”
next
set router-id 10.174.0.113
end
Note that OSPFv3 neighbors use link-local IPv6 addresses, but with broadcast and point-to-point network types, neighbors are automatically discovered. You only have to manually configure neighbors when using non-broadcast network types.