Debugging DHCPv6-PD

[hnyman]

@oofnik

always results in a /64 prefix being advertised. This was confirmed by my ISP as the intended behavior; they do not offer prefixes of any other size.

If your ISP only gives you one /64 prefix, you might need to use the relay mode in OpenWrt.

See relay example in wiki.
https://openwrt.org/docs/guide-user/network/ipv6/start#router_advertisement_dhcpv6

Or

IPv6 Configuration (relay single /64 prefix)

Try the relay mode for ipv6. It is meant for your situation where upstream only gives a /64 prefix. See the "relay" example for /etc/config/dhcp in wiki: https://openwrt.org/docs/guide-user/network/ipv6/start#router_advertisement_dhcpv6 Example configuration section for relaying # cat /etc/config/dhcp config dhcp wan option dhcpv6 relay option ra relay option ndp relay option master 1 config dhcp lan option dhcpv6 relay option ra relay option ndp relay (And …