Ripng Configuration; Ripng Overview - Zte ZXR10 5900E Series User Manual

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C h a p t e r

RIPng Configuration

Table of Contents

RIPng Overview.................................................................27

Configuring RIPng .............................................................29
RIPng Configuration Example ..............................................30
RIPng Maintenance and Diagnosis........................................30
RIPng Overview
As a mature route standard,RIP is widely applied in Internet, es-
pecially in some small and medium-sized networks. Considering
this situation and the compatibility between RIP and IPv6,
ters the existing technology and sets the RIP standard under IPv6,
namely, RIPng .
As a UDP-based protocol, RIPng sends and receives packet through
Port 521. Generally, RIPng messages are classified into two cate-
gories: request message and update message.
RIPng is not intended to create a completely new protocol. It is
to make necessary alternation to RIP, enabling it to adapt to the
routing requirements under IPv6. Therefore, RIPng has the same
working principle with RIP, except for changes in address and mes-
sage format.
� Address version
Both RIPv1 and RIPv2 are based on IPv4 and their address
domain is 32-bit. RIPng is based on IPv6 and all the applied
addresses are 128-bit.
� Subnet mask and prefix length
RIPv1 is designed as a network without subnets, so there is no
concept of subnet mask. In this way, RIPv1 cannot be used for
propagation of extended subnet addresses or for
less addresses. Function of supporting subnet routing is added
to RIPv2, so RIPv2 can use subnet masks to distinguish net-
work routes and subnet routes.
As IPv6 address prefixes have explicit meanings, RIPng does
not have subnet masks any more but has prefix length. Simi-
larly, due to application of IPv6 addresses, it is not necessary
to distinguish network routes, subnet routes and host routes
in RIPng.
� Scope of application
Confidential and Proprietary Information of ZTE CORPORATION
IETF al-
CIDR class-
27