If you have IPv6, you'll see a global-scope IPv6 address in your ipconfig output or your OS's equivalent. Link-local addresses beginning with fe80 don't normally count, as they are non-routable (much like 192.168.x.y, 172.16.x.y-172.31.x.y and 10.x.y.z IPv4 addresses). The only situation in which link-local addresses may count is if you have an IPv6-enabled proxy-server on your LAN, in which case your PC may use its link-local address to connect to the proxy which will then forward the request using its global address.
Example:
eth0 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx
inet addr:192.168.1.38 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: 2001:470:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx/64 Scope:Global
inet6 addr: fe80::xxxx:xxxx:xxxx:xxxx/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:9710 Metric:1
RX packets:80867 errors:0 dropped:0 overruns:0 frame:0
TX packets:48222 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:72287341 (68.9 MiB) TX bytes:22768102 (21.7 MiB)