IPv6 OSPF

Open Shortest Path First (OSPF) is a link-state routing protocol that calculates forwarding tables in an IP-based network.

OSPF is the preferred Interior Gateway Protocol (IGP) for Check Point.

OSPF supports IPv6. OSPF for IPv6 is also referred to as OSPF version 3 (OSPFv3). OSPFv3 is defined in RFC 5340 (which makes RFC 2740 obsolete).

OSPFv3 is supported by both ClusterXL and VRRP clusters.

The IPv6 address which appears in the source of OSPFv3 packets sent on the interface must be a link-local address, that is, an FE80::/64 address.

A link-local address is automatically added to each interface when IPv6 is enabled on Gaia Check Point security operating system that combines the strengths of both SecurePlatform and IPSO operating systems..

The address is unique per interface and has this format:

• Bytes 0-1: FE:80.

• Bytes 2-7: Zeros.

• Bytes 8-10: 00:1C:7F (Check Point OUI).

• Byte 11: Zeros.

• Bytes 12-15: IPv4 Cluster Two or more Security Gateways that work together in a redundant configuration - High Availability, or Load Sharing. Virtual IP address

You can override the automatic Link-Local address with manual configuration. The addresses are used for next hops, to advertise routes, and to send Hello messages. OSPFv3 advertises the IPv6 addresses defined by the user, but OSPFv3exchanges routes which use the FE80 addresses. A /64 address is required by the OSPFv3 protocol. If the peer router does not use an FE80::/64 address, OSPFv3 does not work.

OSPFv2 is used with IPv4. See OSPF.