User's Manual

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Users Manual of CS-6306R
Chapter 53. RIPNG Configuration
Configuring RIPNG 53.1
53.1.1 Overview
Routing Information Protocol of next generation (RIPng) is the RIP of version 6. In the equipment RIPng and
RIP are two completely independent modules that are in charge of the learning and management of the
routing information in version 6 and version 4 respectively.
RIPng is same to RIP in the internal working mechanism. RIPng switches the routing information through the
UDP broadcast. In a router the update of the routing information is transmitted every 30 seconds. If a router
has not received the routing update from its neighboring router in 180 seconds, the router will label this route
unavailable in its routing table. And in the following 120 second this router will remote this route from its
routing table.
RIPng can also be applied in small-scale networks. It uses the hop count to weigh the weights of different
routes. This hop count means the number of routers that a packet has passed from a signal source to another
signal source. The routing weight of the directly connected network is 0 and that of the unreachable network is
16. Since the route weight used by RIPng has a small range, it is unsuitable for the large-scale networks.
If a router has a default route, RIPng declares the route to the fake network 0: : 0/0. In fact, network 0: :
0/0 does not exist and it is just used to realize the default route in RIPng. If RIPng learns a default route or a
router sets the default gateway and the default weight, the router will declare the default network.
RIPng sends the route update to the interface that is covered by instances. If an interface is not set to be an
IPv6 interface, it will not be covered by an RIPng instance.
The RIPng protocol in our routers supports multiple instances. On an interface up to four instances can be set
and one instance can cover up to 4 interfaces.
53.1.2 Setting RIPng Configuration Task List
Before setting RIPng, you have finished the following tasks. Among these tasks, you have to activate RIPng,
but to other tasks, you can choose to do them according actual requirements.
 Allowing to Set the Unicast Routing Protocol
 Enabling RIPng
 Allowing the RIPng route to update the unicasting broadcast of a packet
 Applying the Offset on the Routing Weight
 Filtering the received or transmitted routes
 Setting the Management Distance
 Adjusting the Timer
 Redistributing the Routes of an Unlocal Instance
 Summarizing the Routes Manually
 Maximum Number of Routes
 Activating or Forbidding Horizontal Fragmentation
 Monitoring and Maintaining RIPng