Quick Reference Guide

230 IPv6 Addressing
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Syntax
• ipv6 address autoconfig
• no ipv6 address autoconfig
Default Configuration
Address autoconfiguration is enabled on the interface, no addresses are assigned by default.
Command Mode
Interface Configuration (Ethernet, VLAN, Port-channel) mode.
User Guidelines
• When address autoconfig is enabled, router solicitation ND procedure is initiated to discover a router and
assign IP addresses to the interface, based on the advertised on-link prefixes.
• When disabling address autoconfig, automatically generated addresses assigned to the interface are
removed.
• The default state of the address autoconfig is 'enabled'. To enable an IPv6 interface without address
autoconfig, use the
enable ipv6 no-autoconfig command.
Example
The following example enables automatic configuration of IPv6 addresses using stateless autoconfiguration
on VLAN 1.
ipv6 icmp error-interval
The ipv6 icmp error-interval Global Configuration mode command configures the rate limit interval and
bucket size parameters for IPv6 Internet Control Message Protocol (ICMP) error messages. Use the no form
of this command to return the interval to its default setting.
Syntax
• ipv6 icmp error-interval milliseconds [ bucketsize ]
• no ipv6 icmp error-interval
• milliseconds — The time interval between tokens being placed in the bucket, each token represents a
single ICMP error message. (Range: 0 - 2147483647)
•
bucketsize — The maximum number of tokens stored in the bucket. (Range: 1 - 200)
Default Configuration
The default interval is 100ms and the default bucketsize is 10 tokens.
Console (config)# interface vlan 1
Console (config-if)# ipv6 address autoconfig