David Härdeman

(and no auth can lead to things like [CVEs](https://nvd.nist.gov/vuln/detail/CVE-2020-13529))

> RFC3315 is the first RFC on this topic, RFC6644 updates specifically RECONFIGURE, and yes RFC8514bis is the latest clean version and would be preferred if implemented. I think you...

> Yes I did read to fast or overlooked this. > > So we have no clients that support this? `odhcp6c` supports it (I haven't tried it yet): https://github.com/openwrt/odhcp6c/blob/5212a1019d75db47a03c95c12e385e4625dda3d0/src/dhcpv6.c#L1057-L1098 You...

IOW, the only potential puzzle piece that's missing from OpenWrt's side is DHCPv4 _client_ support (since we use the DHCP client from `busybox`, and I haven't checked but I doubt...

> Speaking of `odhcpd` as server and `odhcp6c` as client. What needs to be configured that this works? Maybe it is only the lack of documentation. Which I happily help...

This seems like a bug that we should fix. `dhcpv6_assignall` should probably just affect `GUA` prefixes.

I haven't looked into this in detail, but I have a hunch that it'd be better to add support to `netifd` to set a specific (similar to an IPv6-Token) style...

> Should we first enable LuCI to support configuring `dns_service` in relay mode? I want to override the ISP's IPv6 DNS with the local DNS in relay mode, which theoretically...

For anyone who comes across this PR: I will substantially rework it once a bunch of other PRs have landed. I'm keeping the draft PR here as a placeholder and...

I can see the value of unicast replies (RFC7772, battery-saving, the kind of thing that Cisco and Juniper support), and we should probably add support for that at some point...