As of LCOS version 8.84, the variable %a for dynamic IPv4 addresses in DynDNS scripts or action-table scripts is now complemented by the variable %z for dynamic IPv6 addresses.
Important: Using the variable %z requires that you specify the IPv6 address. If you do not supply an address, the device will not execute the script.
New in the action table is the action prefix dnscheck6:, with which you initiate an IPv6 DNS name resolution. For example, the action dnscheck6:myserver.dyndns.org requests the IPv6 address of the indicated server.