If you cannot upgrade your existing equipment, you might need to purchase IPv6-ready equipment. Check the manufacturer's documentation for any equipment-specific procedures that you might be required to perform to support IPv6.
You cannot upgrade certain IPv4 routers for IPv6 support. If this situation applies to your topology, as an alternative, you can physically wire an IPv6 router next to the IPv4 router. Then, you can tunnel from the IPv6 router over the IPv4 router. For instructions on configuring IP tunnels, see Chapter 5, Administering IP Tunnels, in Administering TCP/IP Networks, IPMP, and IP Tunnels in Oracle Solaris 11.2 .