That cofirms that your OS is IPv6 capable. The fe80 is indeed the prefix for a link local address. The lower 64 bit are derived from the MAC address of the interface.
DD> My DSL modem/route is an ASUS DSl-N55U which, going by the (GUI) DD> interface, supports IPv6 (native and tunnel).
DD> My ISP seems to be more interested in iPhone 6 than IPv6 (I cannot DD> find anything about timing/availability).
So if your router supports tunnels, why wait for your ISP? Get a free tunnel from he.net and install it on your router. It is easy. Join the Ipv6 world today!