Ipv6 Commands; Ipv6 Addressing - ZyXEL Communications Ethernet Switch Cli Reference Manual

C
HA P T E R
33.1 IPv6 Overview
IPv6 (Internet Protocol version 6), is designed to enhance IP address size and features. The
increase in IPv6 address size to 128 bits (from the 32-bit IPv4 address) allows up to 3.4 x 10
IP addresses. At the time of writing, the Switch supports the following features.
• Static address assignment (see
(see Stateless Autoconfiguration
• Neighbor Discovery Protocol (see
• Remote Management using SNMP, Telnet, HTTP and FTP services (see
page 245)
• ICMPv6 (see
• IPv4/IPv6 dual stack; the Switch can run IPv4 and IPv6 at the same time.
• DHCPv6 client and relay (see
• Multicast Listener Discovery (MLD) snooping and proxy (see
Discovery
For more information on IPv6 addresses, refer to RFC 2460 and RFC 4291.

33.1.1 IPv6 Addressing

The 128-bit IPv6 address is written as eight 16-bit hexadecimal blocks separated by colons (:).
This is an example IPv6 address
IPv6 addresses can be abbreviated in two ways:
• Leading zeros in a block can be omitted. So
2001:0db8:1a2b:0015:0000:0000:1a2f:0000
2001:db8:1a2b:15:0:0:1a2f:0
• Any number of consecutive blocks of zeros can be replaced by a double colon. A double
colon can only appear once in an IPv6 address. So
2001:0db8:0000:0000:1a2f:0000:0000:0015
2001:0db8::1a2f:0000:0000:0015
Ethernet Switch CLI Reference Guide

IPv6 Commands

Section 33.1.1 on page
on page
Neighbor Discovery Protocol (NDP)
ICMPv6 on page 143)
DHCPv6
on page 144)
2001:0db8:1a2b:0015:0000:0000:1a2f:0000
.
139) and stateless autoconfiguration
142)
on page 142)
Multicast Listener
can be written as
can be written as
or
2001:0db8:0000:0000:1a2f::0015
33
38
on page 144)
Chapter 61 on
.
.
139