The ISP was running out of IPv4 addresses so he gave us an IPv6; Now I have a static IPv6 address, which is good. According to the IPv6 description I should now be able to directly address any device in the LAN from the WAN without going through Port forwarding to LAN IPv4 addresses (just setting the IPv6 Address and the Firewall permits).
Now when I ask for my IP address on any of the PC in the LAN I get following 0000:aaa:bbbb:cccc:dddd:eeee:ffff:gggg The first 4 groups are always the same on any of the PCs, so that is my external public IP and the last 4 groups change not only by device but also by time if called from the same PC (so that is this Interface Identification created by the Program). Now where is the IPv6 address part for an individual device in the LAN? How can I get the IPv6 address of a device in the LAN and then address that device directly from the WAN with that IPv6 address. I can still use my LAN server by using Port forwarding as I did before but how to change to this advanced direct IPv6 addressing? Do I understand here something totally wrong ???