Add IPv6 address
This options allows you to add an IPv6 address/subnet of a remote point for which the rule is applied. It is the newest version of the Internet protocol and will replace the older version 4.
Adds the IP address of an individual computer for which the rule is to be applied, for example 2001:718:1c01:16:214:22ff:fec9:ca5
Subnet (a group of computers) is defined by an IP address and mask.