DHCPv6 "Deny unknown clients" does not work
While experimenting with IPv6 I noticed that the "Deny unknown clients" option in "Services - DHCPv6 server" does not work.
I have not defined any entries in the table "DHCPv6 Static Mappings for this interface", but yet it happens.
New DHCPv6 leases pops up in "Status - DHCPv6 leases" even though "Deny unknown clients" has been enabled and the configuration has been saved (and Status - Filter Reload Status - Reload Filter button has been clicked) in advance.
I have also mentioned this issue in http://forum.pfsense.org/index.php/topic,69348.0.html
Remove 'deny unknown clients' option from DHCPv6 since it's not supported, it fixes #3364