Lync Server 2013 now supports IPv6 addressing for all Edge Server services. If you have configured IPv6 addresses on your Windows Server, you can now configure the Lync Server Topology to use these IPv6 addresses. All services, including the XMPP gateway, support IPv6.
To support IPv6, you must create DNS records for the IPv6 addresses. These host records are defined as AAAA records. The DNS records required is consistent between IPv4 and IPv6. For details on required DNS records, see Chapter 11, “Dependent Services and SQL.”