Configuring DHCP snooping support for Option 18
Enter system view.
system-view
Enter interface view.
interface interface-type interface-number
Enable DHCP snooping support for Option 18.
ipv6 dhcp snooping option interface-id enable
By default, DHCP snooping support for Option 18 is disabled.
(Optional.) Specify the content as the interface ID.
ipv6 dhcp snooping option interface-id [ vlan vlan-id ] string interface-id
By default, the DHCPv6 snooping device uses its DUID as the content for Option 18.