Quick Reference Guide

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IPv6 Addressing
ipv6 enable
The ipv6 enable Interface Configuration mode command enables IPv6 processing on an interface. Use the
no form of this command to disable IPv6 processing on an interface.
Syntax
• ipv6 enable [ no-autoconfig ]
• no ipv6 enable
– no-autoconfig — Enables IPv6 processing on an interface without a stateless address
autoconfiguration procedure.
Default Configuration
IPv6 is disabled. When the interface is enabled unless using the no-autoconfig parameter, stateless address
autoconfiguration procedure is enabled.
Command Mode
Interface Configuration (Ethernet, VLAN, Port-channel) mode. This command cannot be configured for a
range of interfaces (range context).
User Guidelines
•The ipv6 enable command automatically configures an IPv6 link-local unicast address on the interface
while also enabling the interface for IPv6 processing. The
no ipv6 enable command removes the entire
IPv6 interface configuration.
• To enable stateless address autoconfiguration on an enabled IPv6 interface, use the
ipv6 address
autoconfig
command.
Example
The following example enables IPv6 processing onVLAN 1.
ipv6 address autoconfig
The ipv6 address autoconfig Interface Configuration mode command enables automatic configuration of
IPv6 addresses using stateless autoconfiguration on an interface. Addresses are configured depending on the
prefixes received in Router Advertisement messages. , Use the no form of this command to disable address
autoconfiguration on the interface.
Console (config)# interface vlan 1
Console (config-if)# ipv6 enable
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