= Сообщение: 3818 из 7440 ============================================= IPV6 = От : Markus Reschke 2:240/1661 01 Dec 16 16:36:16 Кому : Nicholas Boel 01 Dec 16 16:36:16 Тема : Cable modem change FGHI : area://IPV6?msgid=2:240/1661+5833447a На : area://IPV6?msgid=1:154/10+58403b65 = Кодировка сообщения определена как: LATIN-1 ================================ Ответ: area://IPV6?msgid=1:154/10+58404b26 ============================================================================== Hello Nicholas!
Dec 01 09:00 2016, Nicholas Boel wrote to Markus Reschke:
MR>> PD ;) Try a DHCP client supporting prefix delegation and ask the MR>> cable modem/router for a prefix.
NB> I think that's exactly what I was referring to. If I disable DHCP-PD NB> on my router, I can indeed ask for a prefix and/or prefix length. I NB> just haven't tried it yet, and don't feel like breaking anything at NB> the moment since everything is working so nicely. :)
It's a prefix tree. The main router connected to the WAN link uses DHCP PD to request a prefix from the provider. Some routers allow to specify the prefix length. Usually the provider will assign a /56 to your router. After that your router takes the first /64 from that /56 and uses it for its LAN interface. Again, some routers allow to modify the prefix length for the LAN. When you connect another router to your main router, the new router can ask for a prefix via DHCP PD. The main router consults its table and assigns the second /64 out of the provider's /56. This also implies that each router assigning a prefix to another one also takes care about routing the prefix to the correct next hop i.e. the new router.
