CLI Reference Guide

Chapter 28 | IP Interface Commands
IPv6 Interface
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Console(config)#interface vlan 1
Console(config)#ipv6 nd ra router-preference high
Console(config)#
ipv6 nd ra suppress This command suppresses router advertisement transmissions on an interface. Use
the no form to re-enable router advertisements.
Syntax
[no] ipv6 nd ra suppress
Command Mode
Interface Configuration (VLAN, IPv6/v4 Tunnel)
Default Setting
Not suppressed
Command Usage
This command suppresses periodic unsolicited router advertisements. It does not
suppress advertisements sent in response to a router solicitation.
Example
The following suppresses router advertisements on the current interface:
Console(config)#interface vlan 1
Console(config)#ipv6 nd ra suppress
Console(config)#
clear ipv6 neighbors This command deletes all dynamic entries in the IPv6 neighbor discovery cache.
Command Mode
Privileged Exec
Example
The following deletes all dynamic entries in the IPv6 neighbor cache:
Console#clear ipv6 neighbors
Console#