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DES-7200 Configuration Guide Chapter 3 RIPng
Configuration
3-1
3 RIPng Configuration
3.1 Overview
Similar to RIP, RIPng is a distance-vector routing protocol using hop count as the
routing metric. RIPng is an interior gateway protocol applicable to small- and
medium-sized networks. RIPng is the necessary extension of RIP to address the
routing requirements of IPv6. Therefore, RIPng and RIP have basic working
principles in common. The main differences rise from the format of their address
and packet. Based on IPv6, RIPng supports and uses the multicast group
address of FF02::9 for update messages. Security authentication used in RIP is
also cancelled. Instead, RIPng enables security authentication by the security
mechanism of IPv6. 521 port is used. Packet format, mask and maximum packet
length are all different. Please refer to RFC2080 and RFC2081 for details. Given
the difference from RIP, the corresponding CLI commands are also lesser.
3.2 RIPng Configuration Task
The default configurations of RIPng are given below:
Function Default setting
Network interface The default metric-offset is 1.
Redistribution
The route redistribution is disabled by
default.
If enabled:
z All sub-routes of the routing
process are redistributed.
z The metric of redistributed route is
the default metric.
Split horizon Enabled
Poisoned reverse Disabled
Timer
By default:
z Update time is 30 seconds
z Invalid time is 180 second
z Clearing time is 120 seconds