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NE40E V800R010C10SPC500 Configuration Guide - IP Routing 01

This is NE40E V800R010C10SPC500 Configuration Guide - IP Routing

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Overview of RIPng

Overview of RIPng

RIPng protocol can implement the interworking of small and medium-sized networks.


RIP next generation (RIPng) is an extension to RIP version 2 (RIP-2) on IPv6 networks. Most RIP concepts apply to RIPng.

RIPng is a distance-vector routing protocol, which measures the distance (metric or cost) to the destination host by the hop count. In RIPng, the hop count from a device to its directly connected network is 0, and the hop count from a device to a network that is reachable through another device is 1. When the hop count is equal to or exceeds 16, the destination network or host is defined as unreachable.

To be applied on IPv6 networks, RIPng makes the following changes to RIP:

  • UDP port number: RIPng uses UDP port number 521 to send and receive routing information.

  • Multicast address: RIPng uses FF02::9 as the link-local multicast address of a RIPng device.

  • Prefix length: RIPng uses a 128-bit (the mask length) prefix in the destination address.

  • Next hop address: RIPng uses a 128-bit IPv6 address.

  • Source address: RIPng uses link-local address FE80::/10 as the source address to send RIPng Update packets.


RIPng is an extension to RIP for support of IPv6.

Updated: 2019-01-03

Document ID: EDOC1100055018

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