ipv6 nd ra prefix

Syntax

ipv6 nd ra prefix { ipv6-prefix prefix-length | ipv6-prefix/prefix-length } { valid-lifetime preferred-lifetime [ no-autoconfig | off-link ] * | no-advertise }

undo ipv6 nd ra prefix { ipv6-prefix | ipv6-prefix/prefix-length }

View

Interface view

Default level

2: System level

Parameters

ipv6-prefix: Specifies the IPv6 prefix.

prefix-length: Specifies the prefix length of the IPv6 address.

valid-lifetime: Specifies the valid lifetime of a prefix in seconds, in the range of 0 to 4294967295.

preferred-lifetime: Specifies the preferred lifetime of a prefix used for stateless autoconfiguration in seconds, in the range of 0 to 4294967295.

no-autoconfig: Specifies a prefix not to be used for stateless autoconfiguration. If this keyword is not provided, the prefix is used for stateless autoconfiguration.

off-link: Indicates that the address with the prefix is not directly reachable on the link. If this keyword is not provided, the address with the prefix is directly reachable on the link.

no-advertise: Disables the device from advertising the prefix specified in this command. If you do not specify this keyword, the device advertises the prefix specified in this command.

Description

Use ipv6 nd ra prefix to configure the prefix information in RA messages.

Use undo ipv6 nd ra prefix to remove the prefix information from RA messages.

By default, no prefix information is configured in RA messages and the IPv6 address of the interface sending RA messages is used as the prefix information with valid lifetime 2592000 seconds (30 days) and preferred lifetime 604800 seconds (seven days).

Examples

# Configure the prefix information for RA messages on VLAN-interface 100.

<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] ipv6 nd ra prefix 2001:10::100/64 100 10