Juniper ACX2000 Configuration Guide

This section discusses the following topics that provide background information about
IPv6 addressing:
•
Address Representation on page 532
•
Address Types on page 532
•
Address Scope on page 532
•
Address Structure on page 533
Address Representation
IPv6 addresses consist of 8 groups of 16-bit hexadecimal values separated by colons
(:). The IPv6 address format is as follows:
aaaa:aaaa:aaaa:aaaa:aaaa:aaaa:aaaa:aaaa
aaaa is a 16-bit hexadecimal value, and a is a 4-bit hexadecimal value. Following is an
example of an actual IPv6 address:
3FFE:0000:0000:0001:0200:F8FF:FE75:50DF
You can omit the leading zeros, as shown:
3FFE:0:0:1:200:F8FF:FE75:50DF
You can compress 16-bit groups of zeros to the notation :: (two colons), as shown here,
but only once per address:
3FFE::1:200:F8FF:FE75:50DF
Address Types
There are three types of IPv6 addresses:
•
Unicast—For a single interface.
•
Multicast—For a set of interfaces on the same physical medium. A packet is sent to all
of the interfaces associated with the address.
•
Anycast—For a set of interfaces on different physical mediums. A packet is sent to only
one of the interfaces associated with this address, not to all the interfaces.
Address Scope
IPv6 addresses have scope, which identifies the application suitable for the address.
Unicast and multicast addresses support scoping.
Unicast addresses support two types of scope: global scope and local scope. There are
two types of local scope: link-local addresses and site-local addresses. Link-local unicast
addresses are used within a single network link. The first ten bits of the prefix identify the
address as a link-local address. Link-local addresses cannot be used outside a network
link. Site-local unicast addresses are used within a site or intranet. A site consists of
multiple network links, and site-local addresses identify nodes inside the intranet.
Site-local addresses cannot be used outside the site.
Copyright © 2017, Juniper Networks, Inc.532
ACX Series Universal Access Router Configuration Guide

Juniper ACX2000 Specifications

General

Brand	Juniper
Model	ACX2000
Category	Network Router
Language	English