dhcpcd-discuss

I am running dhcpcd-6.9, and I can't get
IPv6 prefix delegation working. I have two interfaces:
'enp1s10' for WAN, 'wlp2s0' for LAN (and 'enp3s0'
which is unused).

At some point during boot, dhcpcd hangs, forks into
background, and no prefix gets delegated to wlp2s0:

Sep 22 02:35:26 dev: loaded udev
Sep 22 02:35:26 enp3s0: adding address fe80::bd54:908d:64f5:41f0
Sep 22 02:35:26 enp1s10: adding address fe80::7376:ac2d:a96a:6a6f
Sep 22 02:35:26 wlp2s0: adding address fe80::608f:65e4:4fa2:b831
Sep 22 02:35:26 enp3s0: waiting for carrier
Sep 22 02:35:26 enp1s10: waiting for carrier
Sep 22 02:35:26 wlp2s0: waiting for carrier
Sep 22 02:35:26 wlp2s0: carrier acquired
Sep 22 02:35:26 DUID 00:01:00:01:1d:7a:83:94:00:15:f2:d4:79:34
Sep 22 02:35:26 wlp2s0: IAID 93:54:1d:3e
Sep 22 02:35:26 wlp2s0: carrier lost
Sep 22 02:35:26 wlp2s0: deleting address fe80::608f:65e4:4fa2:b831
Sep 22 02:35:29 enp1s10: carrier acquired
Sep 22 02:35:29 enp1s10: IAID 00:00:00:01
Sep 22 02:35:29 enp1s10: rebinding lease of 192.168.2.107
Sep 22 02:35:29 enp1s10: leased 192.168.2.107 for 1814400 seconds
Sep 22 02:35:29 enp1s10: adding route to 192.168.2.0/24
Sep 22 02:35:29 enp1s10: adding default route via 192.168.2.1
Sep 22 02:35:30 enp1s10: soliciting an IPv6 router
Sep 22 02:35:31 enp1s10: soliciting a DHCPv6 lease
Sep 22 02:35:31 enp1s10: Router Advertisement from fe80::1
Sep 22 02:35:31 enp1s10: adding address 2003:56:ce64:dc90:a703:3afe:75fa:da67/64
Sep 22 02:35:31 enp1s10: adding route to 2003:56:ce64:dc90::/64
Sep 22 02:35:31 enp1s10: adding default route via fe80::1
Sep 22 02:35:56 timed out
Sep 22 02:35:56 forked to background, child pid 1776
Sep 22 02:35:57 control command: dhcpcd -m 3 enp1s10
Sep 22 02:35:58 wlp2s0: carrier acquired
Sep 22 02:35:58 wlp2s0: adding address fe80::e92b:ce84:16b3:90c0
Sep 22 02:35:58 wlp2s0: IAID 93:54:1d:3e
Sep 22 02:35:58 wlp2s0: soliciting a DHCP lease
Sep 22 02:36:08 wlp2s0: using IPv4LL address 169.254.43.159
Sep 22 02:36:08 wlp2s0: adding route to 169.254.0.0/16
Sep 22 02:36:08 wlp2s0: removing route to 169.254.0.0/16

My dhcpcd.conf is:

hostname
duid
persistent
option rapid_commit
option domain_name_servers, domain_name, domain_search, host_name
option classless_static_routes
option ntp_servers
require dhcp_server_identifier
slaac private
nohook lookup-hostname

# The stuff below was suggested by
# https://wiki.archlinux.org/index.php/IPv6#Prefix_delegation_.28DHCPv6-PD.29
noipv6rs
waitip 6

interface enp1s10
ipv6rs
iaid 1

#ia_pd 1 wlp2s0
ia_pd 1/::/64 wlp2s0/0/64


Many thanks!