If IPv6 unicast routing is enabled on an Ethernet interface, by default, this interface
sends IPv6 router advertisement messages. The IPv6 router sets the preference field
based on the configured value on IPv6 RA and sends it periodically to the IPv6 host
or as a response to the router solicitations.
Enter global configuration mode.
device# configuration terminal
Use the
ipv6 nd router-preference command to configure IPv6 RA preference for the IPv6 router.