IGP Protocols for IPv6
The second family of routing protocols presented in this chapter are the Interior Gateway Protocols (IGPs). IGPs are used inside ASs and domains. The most common IPv4 routing protocols used inside domains are Routing Information Protocol (RIP), Intermediate System-to-Intermediate System (IS-IS), Open Shortest Path First (OSPF), and Enhanced Interior Gateway Routing Protocol (EIGRP).
The following is a short overview of IGP's properties:
RIP— Version 1 of this routing protocol was one of the first IGPs used inside IPv4 domains. RIP is a distance vector routing protocol based on the Bellman-Ford algorithm. It uses User Datagram Protocol (UDP) on port 520 to advertise routing information to other RIP routers. RIP was designed ...