António Amaral wrote:

Dear All,

 

I am using IPv6 Windows XP stack and I have two questions:

 

1. Why it is created two IPv6 addresses on the Ethernet Interface? It should be created only one base on EUI-64, right? Next I show my interface output

Windows XP is RFC 3041 compliant so it generates IPv6 address based on a pseudo casual algorithm.
You have two address, one built from mac address based on EUI-64 and one based on that RFC (3041).

2. Why can I not ping to my IPv6 addresses? I can ping to others IPv6 addresses, and the others can ping my addresses. Is this a bug?

You can't ping your addresses because you have the Microsoft IPv6 firewall enabled in your system.
To disable firewall filtering you must use the folllowing netsh command:

netsh firewall
set adapter "nome of your interface" filtering=disable.

In that way you can ping your IPv6 address.

I hope you resolve your problem (in case you can ask me again)
Excuse me for my (bad) english.

Gabriele Barbagallo