NAT seems completely superfluous when the networks are dished out as /64. I did notice that there is a reserved range of private/local/site-unique addresses (prefix fd), but I'm not quite sure what that is intended for. My understanding is those are addresses that can be used within an organization, either through a router or not, but not accessable by the world. That's the weird thing - it doesn't say so. At least not in wikipedia.
Yea, that's a credible source. :)
The 40-bit site-id is supposed to be random, so the unique local address isn't guaranteed to be unique, but does have a very high probability of being so. The thing is - todays RFC1918 IPv4 addresses are obviously not unique, but also not routable, but what's with these most-probably-unique IPv6 addresses that appear to be routable? It's been a while since I read about it, but there are different tiers of addresses. The bottom address range is based strictly on the MAC address and is non-routeable. There are also other tiers that are limited to an organization or even to a part of the organization. These ranges are routeable, but not allowed on the internet, in the manner of RFC1918. Address ranges in IPv6 is a topic in and of itself.
2001::/16 - Allocated to RIRs 2002::/16 - Allocated to 6t4 fe80::/10 - Link local, those-MAC-derived addresses, at least for Ethernet. It uses a mechanism knows as SLAAC to come up with, at least on Ethernet, theoretically unique address. fec0::/10 - Site local, like 192.168.x.x, 10.x.x.x, etc... fc00::/8 - Unique Local, allocation still up in the air last I knew. But these are like a real network address but not routeable (?). fd00:/8 - Another kind of Unique Local, even more mysterious than fc00::/8. But you can get one from SixXS who seem to have appointed themselves as a registrar. This is what we use internally (one of these) for now. -- OpenGroupware developer: awilliam@whitemice.org http://whitemiceconsulting.blogspot.com/ OpenGroupare & Cyrus IMAPd documenation @ http://docs.opengroupware.org/Members/whitemice/wmogag/file_view -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org