The 7210 SAS provides an option to add option-18 (interface ID option) and option-37 (relay agent remote ID option).
To configure option-18, use the config>service>vpls>sap>dhcp6>option> [no] interface-id command . To configure option-37, use the config>service>vpls>sap>dhcp6>option> [no] remote-id command.
The interface-id option is added to relay-forward messages when DHCPv6 snooping is enabled on client-facing service objects.
The remote-id command is optional and only added to relay-forward messages if configured by the user. Configure the no remote-id option to disable the addition of this option. IANA Enterprise-numbers.txt specifies the Nokia Enterprise ID value to use with the DHCPv6 remote-id option.