Enable NDP Monitoring so
you can view the IPv6 addresses of devices on the link local network,
their MAC address, associated username from User-ID (if the user
of that device used the directory service to log in), reachability
Status of the address, and Last Reported date and time the NDP monitor
received a Router Advertisement from this IPv6 address. The username
is on a best-case basis; there can be many IPv6 devices on a network
with no username, such as printers, fax machines, servers, etc.