Introduction to RIPng
RIP next generation (RIPng) is an extension of RIP-2 for IPv4. Most RIP concepts are applicable in RIPng. The term "router" in this chapter refers to both routers and Layer 3 switches.
RIPng for IPv6 has the following basic differences from RIP:
UDP port number—RIPng uses UDP port 521 for sending and receiving routing information.
Multicast address—RIPng uses FF02::9 as the link-local-router multicast address.
Destination Prefix—128-bit destination address prefix.
Next hop—128-bit IPv6 address.
Source address—RIPng uses FE80::/10 as the link-local source address.