inet6 addr: fe80::16da:e9ff:feb6:357e/64 Scope:Link
fe80::/10 as the “Scope” behind it states is a Link-Local address.
To connect to the rest of the internet you need a Global address (thus out of 2000::/3 at least for the next several years) and of course you need at least a default (::/0) or defaultish (2000::/3) route to a router that will actually forward your packets.
As such you have two options:
1) ask your ISP to provide you with native IPv6
2) get a tunnel (google for ‘wikipedia ipv6 tunnel broker’ to get a good list).