What is a function of IPv6 Source Guard?

IPv6 source guard is an interface feature between the populated binding table and data traffic

filtering. This feature enables the device to deny traffic when it is originated from an address that is

not stored in the binding table. IPv6 source guard does not inspect ND or DHCP packets;rather, it

works in conjunction with IPv6 neighbor discovery (ND) inspection or IPv6 address glean, both of

which detect existing addresses on the link and store them into the binding table.