I just bought an HP 2910 series Switch, Managed Layer 3 routing and iPv6 compliant. In addition I have a CISCO Switch, equally Layer 3 Managed and iPv6 compliant. I plan to setup my new network based on iPv6. This includes also the WAN connection, so not just my internal network. Considering the fact that each host in an iPv6 network will have an iPv6 address which is directly related to the MAC address of the NIC in the host, how would it be possible to create iPv6 based segments in the network with VLANs? In the iPv4 world the maximum number of hosts in an IP range is limited, hence one would be able to determine which hosts should belong to a VLAN. However in the iPv6 world this would be a very very large pool and as a consequence pretty difficult to determine (assuming thousands of hosts). Or am I missing something here? I look forward to your feedback.

sorry, my error. Just posted it again in the iPv6 forum.