configure vlan router-discovery add prefix

configure vlan vlan_name router-discovery {ipv6} add prefix prefix


Adds a prefix to the router discovery advertisements on the This command is available on the ExtremeSwitching X440-G2, X450-G2, X460-G2, X465, X590, X620, X670-G2, X690, X695, X870, 5320, 5420, 5520 series switches..

Syntax Description

vlan_name Specifies an IPv6 configured VLAN.
prefix Specifies the prefix to add.



Usage Guidelines

This command adds a prefix to the router advertisement messages for the VLAN. Prefixes defined with this command are only included in the router advertisement messages and have no operational impact on VLANs.

To configure the parameters for this prefix, use the following command:

configure vlan vlan_name router-discovery {ipv6} set prefix prefix [autonomous-flag auto_on_off | onlink-flag onlink_on_off | preferred-lifetime preflife |valid-lifetime validlife]


The following command adds the prefix 2001:db8:3456::/64 for the VLAN "top_floor":

configure vlan top_floor router-discovery add prefix 2001:db8:3456::/64


This command was first available in ExtremeXOS 11.2.

Platform Availability

This command is available on the platforms listed for the IPv6 unicast routing feature in the ExtremeXOS and Switch Engine 31.7 Feature License Requirements document.