Verifying the configuration

Connect GigabitEthernet 1/0/2 to a DHCPv6 client, GigabitEthernet 1/0/1 to a DHCPv6 server, and GigabitEthernet 1/0/3 to an unauthorized DHCPv6 server. The DHCPv6 client obtains an IPv6 address from DHCPv6 server, but cannot obtain any IPv6 address from the unauthorized DHCPv6 server. You can use the display ipv6 dhcp snooping user-binding command to view the DHCPv6 snooping entries on Switch.