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Configuring IPv6 Host Functions
Internet Protocol Version 6 (IPv6) is the network-layer Internet Protocol intended to replace Version 4
(IPv4) in the TCP/IP suite of protocols. This chapter describes how to configure IPv6host functions on
the switch.
For information about configuring IPv4 unicast routing, see
Routing."
Chapter 36, "Configuring IPv6 MLD Snooping."
To enable dual stack environments (supporting both IPv4 and IPv6), you must configure a switch
database management (SDM) template to a dual IPv4 and IPv6 template. See the
SDM Templates" section on page
"Configuring SDM Templates."
For complete syntax and usage information for the commands used in this chapter, see the Cisco IOS
Note
documentation referenced in the procedures
This chapter consists of these sections:
•
•
•
Understanding IPv6
The primary reason for using IPv6 is to increase Internet global address space to accommodate the
rapidly increasing number of users and applications that require unique global IP addresses. IPv4 uses
32-bit addresses to provide approximately 4 billion available addresses. Large blocks of these addresses
are allocated to government agencies and large organizations, and the number of available IP addresses
is rapidly decreasing. IPv6 incorporates 128-bit source and destination addresses and can provide
significantly more globally unique IP addresses than IPv4.
OL-8915-03
For information about configuring IPv6 Multicast Listener Discovery (MLD) snooping, see
"Understanding IPv6" section on page 35-1
"Configuring IPv6" section on page 35-13
"Displaying IPv6" section on page 35-18
C H A P T E R
35-12. For more information about SDM templates, see
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
35
Chapter 34, "Configuring IP Unicast
"Dual IPv4 and IPv6
Chapter 6,
35-1
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