My network setup is very simple: two win7-64 machines connected to a switch. IPv6 enabled for their network interface. No router no outside network no DHCP.
ipconfig report for the computer shows that they obtain a link local ipv6 address: machineA: Link-local IPv6 Address . . . . . : fe80::7d4a:a8f:2a:e190%10 machineB: Link-local IPv6 Address . . . . . : fe80::2506:6b8e:d161:adcb%11
However I get "Destination host unreachable" error when I ping machineA from machineB using the following syntax:
ping fe80::7d4a:a8f:2a:e190 ping fe80::7d4a:a8f:2a:e190%11
Note: when I ping using the IPv4 address using the exact same configuration and the same time I get response.
Edit: this is the interface info:
Interface List 11...78 2b cb 97 e0 a9 ......Intel(R) 82579LM Gigabit Network Connection