Once you have enabled IPv6 in your Linux or Windows 7/Windows 2008 PC, we have to use ping command to verify the connections. The way commands are used in Windows and Linux are little different but the concept is same.
In IPv6 we need to tell the interface on which it is going to send the ping, In windows %n tells the interface and in Linux it is "-I interface"
Windows :
ping6 fe80::1e6f:66ff:fec6:844d%5
Linux
ping6 -I eth1 fe80::1e6f:66ff:fec6:844d
