Doug, I am pretty sure that the openwrt implementation done by Markus, Pierre and Steven of hncp integrates with DHCPv6.
Cheers, Ole > On 2 Jul 2021, at 21:19, Doug Hardie <bc...@lafn.org> wrote: > > I have been working my way through the RFCs and it appears HNCP might be the > solution. However, both of those implementations require the prefix from the > ISP be configured by hand. That is not viable in situations where a dynamic > IP address is provided. I suspect that HNCP and DHCP6 will need to be > integrated for that. > > -- Doug > >> On 28 June 2021, at 03:00, Chriztoffer Hansen <c...@ntrv.dk> wrote: >> >> You could try https://github.com/jech/shncpd or >> https://github.com/sbyx/hnetd/, though the last update to those >> repositories was 2017-2018... >> >> >>> On Mon, 28 Jun 2021 at 11:10, Brian Carpenter >>> <brian.e.carpen...@gmail.com> wrote: >>> >>> Is HNCP available for the various Linux distros? >>> If not, it has to be PD, I think. >>> >>> Regards, >>> Brian Carpenter >>> (via tiny screen & keyboard) >>> >>> On Mon, 28 Jun 2021, 20:51 Ole Troan, <otr...@employees.org> wrote: >>>> >>>> >>>> >>>>> On 27 Jun 2021, at 23:07, Brian E Carpenter <brian.e.carpen...@gmail.com> >>>>> wrote: >>>>> >>>>> That doesn't work. B needs to get its own /64 prefix(es) from A via >>>>> DHCPv6-PD (https://www.rfc-editor.org/info/rfc8415). That's what >>>>> DHCPv6-PD is for. So A will indeed need to be a DHCPv6 server on its >>>>> downstream interfaces. >>>> >>>> To the extent it matters, it’s not what DHCP PD was designed for. >>>> >>>> HNCP does internal prefix assignment in a network. >>>> >>>> Now, if you were to use DHCP PD for this, I would recommend a single PD >>>> server in the network (on A). DHCP PD clients on all internal routers. >>>> Either DHCP relays or more simply each internal router PD client >>>> configured with the address of the PD server directly. Then an IGP to >>>> advertise prefixes. >>>> >>>> The PD clients should request individual /64s for each of their downstream >>>> interfaces. >>>> >>>> This scheme does not work great in networks with loops or multiple routers >>>> on a link. If using DHCP relays you manually have to make a spanning tree. >>>> And you risk links being assigned multiple prefixes. >>>> >>>> HNCP solves all of this. >>>> >>>> Cheers >>>> Ole >> >> >> >> -- >> Chriztoffer >> >
