Hi Bjørn, On Saturday 01 April 2023 at 16:18:43 +0200, Bjørn Mork wrote: > Mike Crowe <[email protected]> writes: > > Does anyone happen to have a working configuration using Debian pppd to > > connect to Zen Internet in the UK with working IPv6? It looks like IPv6 is > > expected to run over the IPv4 PPPoE connection. IPv4 is all working fine.
[snip] > The other end could be expecting you to use the negotiated interface-id > with that prefix. But I believe it's more likely that they expect you > to use DHCPv6 for address configuration. Did you try that? It's quite > possible that they support DHCPv6-PD, assigning you a larger prefix. It looks like they use DHCPv6 to delegate the LAN prefix(es), but I'd (possibly incorrectly assumed) that this sentence from their email: --8<-- /64 Neighbour Discovery (ND) Prefix. This is used to automatically address the WAN interface of your Router, or if you are directly connected without a router, the WAN interface of that device. This can be configured using SLAAC. -->8-- meant that I should expect to receive a RA with a /64 prefix for the WAN interface address. (Earlier in the email is a /64 described as the "ND prefix" along with a /48 described as the "delegation prefix".) If they expected me to use DHCPv6 for this wouldn't they have set the M bit in the RA? > Finding good DHCPv6 clients with PPP support used to be difficult (the > one from ISC only worked on ethernet). I don't know the current status. > One would hope that modern network managers like systemd-networkd or > NetworkManager just works... I did try running ISC dhclient and that would explain my lack of success. I found mention of wide-dhcpv6-client, which appears to be in Debian, so I'll have a look at that and also maybe dhcpcd which seems to be rather better in my experience. Maybe I should drag myself into the present and try systemd-networkd or NetworkManager. I've just used Debian ifupdown up until now. Thanks for all your advice. You've definitely given me some good pointers! Mike.
