IP V6 Info
http://ip6.me/
http://www.getipv6.info/index.php/Main_Page
Handy programs for network investigations:
Wireshark - Protocol analyser, used to be Ethereal
It turns out Wireshark supports CDP… this is useful as it can therefore be used to interrogate the local switch your PC is connected to, assuming it is a Cisco one. Example output from CDP:
Device ID: BSQ_P3:2_3524:01(V)
Port ID: FastEthernet0/17
Platform: cisco WS-C3550-24-PWR
It turns out the IP information of the switch is also available, now that could be useful…