Recording IP-to-MAC mappings of DHCPv6 clients

DHCPv6 snooping reads DHCPv6 messages to create and update DHCPv6 snooping entries, including MAC addresses of clients, IPv6 addresses obtained by the clients, ports that connect to DHCPv6 clients, and VLANs to which the ports belong. You can use the display ipv6 dhcp snooping user-binding command to view the IPv6 address obtained by each client, so you can manage and monitor the clients' IPv6 addresses.