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54-1
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
54
Configuring IPv6 for Gigabit Ethernet Interfaces
IP version 6 (IPv6) provides extended addressing capability beyond those provided in IP version 4 (IPv4)
in Cisco MDS NX-OS. The architecture of IPv6 has been designed to allow existing IPv4 users to
transition easily to IPv6 while providing services such as end-to-end security, quality of service (QoS),
and globally unique addresses.
This chapter includes the following sections:
• About IPv6, page 54-1
• Configuring Basic Connectivity for IPv6, page 54-11
• Configuring IPv6 Static Routes, page 54-13
• Gigabit Ethernet IPv6-ACL Guidelines, page 54-14
• Transitioning from IPv4 to IPv6, page 54-15
• Default Settings, page 54-15
Note For Cisco NX-OS features that use IP addressing, refer to the chapters in this guide that describe those
features for information on IPv6 addressing support.
Note To configure IP version 4 (IPv4) on a Gigabit Ethernet interface, see Chapter 53, “Configuring IPv4 for
Gigabit Ethernet Interfaces”.
About IPv6
IPv6 provides the following enhancements over IPv4:
• Allows networks to scale and provide global reachability.
• Reduces the need for private address and network address translation (NAT).
• Provides simpler autoconfiguration of addresses.
This section describes the IPv6 features supported by Cisco MDS NX-OS and includes the following
topics:
• Extended IPv6 Address Space for Unique Addresses, page 54-2
• IPv6 Address Formats, page 54-2
• IPv6 Address Prefix Format, page 54-3
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