= Сообщение: 1204 из 7440 ============================================= IPV6 = От : Markus Reschke 2:240/1661 08 Jan 15 13:49:10 Кому : Michiel van der Vlist 08 Jan 15 13:49:10 Тема : binkd completed... FGHI : area://IPV6?msgid=2:240/1661+549aa643 На : area://IPV6?msgid=2:280/5555+54ae6bfc = Кодировка сообщения определена как: LATIN-1 ================================ Ответ: area://IPV6?msgid=2:280/5555+54af2185 ============================================================================== Hi Michiel!
Jan 08 12:13 2015, Michiel van der Vlist wrote to Bill McGarrity:
MvdV> With IPv6 you get a RANGE of addresses. Large enough to give every MvdV> device on your LAN its own globally routable IPv6 address. The MvdV> first 64 bits of the range is called the prefix. Actually the range MvdV> is larger than that, but we will ignore that for the moment. The MvdV> ISP communicates the range to the customer's router by prefix MvdV> delegation.
Actually the user gets two prefixes, one for the WAN connection (mostly a /64) and one for the LAN (/48, /56 or just a /64).
MvdV> Dynamic addresses were used with IPv4 to conserve addresses. An IP MvdV> adrees could be assigned to another user when the previous one MvdV> logged out. This made sense in the age of dial up IP. It does not MvdV> make sense with IPv6 with (semi) permanent connections and no MvdV> shortage of addresses.
Let's say, it's not necessary for technical reasons. But if you take privacy issues into account things change ;)
BM>> Normally I never lose my IPv4 address as well unless I'm disconnected BM>> from Comcast for 30+ minutes or so.
MvdV> My IPv4 address is also dynamic in theory. In practise it is MvdV> static. I do not know how long I have to disconnect to lose it, but MvdV> it is longer than a day.
My provider assigns a new IPv4 address when re-connecting. But there seems to be a time window for the IPv6 LAN prefix. In theory I should get new addresses every 6 months, if there would be no outages or maintenance windows :)
