dhcpcd-discuss

Hi,

I'd like to configure multiple interfaces with a /64. All out of the
assigned /48 I got from the ISP. This works initially. But after rebind
dhcpcd does not configure all interfaces.

Is there an error in my configuration?

Versions:
blau ~$ uname -a
OpenBSD blau.home 6.5 GENERIC.MP#762 amd64
blau ~$ dhcpcd --version
dhcpcd 7.1.1
Copyright (c) 2006-2019 Roy Marples
Compiled in features: INET ARP ARPing IPv4LL INET6 DHCPv6 AUTH
blau ~$


/etc/dhcpcd.conf:
ipv6only
debug
duid
option rapid_commit
require dhcp_server_identifier
script /usr/bin/true
noipv6rs
allowinterfaces em1 em2 vlan2 vlan5
interface em2
        ia_pd 1 em1/1 vlan2/2 vlan5/5


The log shows:
18:29:21 em1, vlan2, vlan5: add routes and addresses
18:59:22 em1, vlan2, vlan5: del routes and addresses
18:59:22 em1:               add route and address
19:29:23 em1:               del route and address
19:29:23 vlan2:             add route and address
19:59:24 vlan2:             del route and address
19:59:24 vlan5:             add route and address
[..]


The log also shows another issue:
Renew does not work and dhcpcd needs to do a rebind. This is because the
DHCPv6 server from my ISP does not answer renew requests sent using unicast.
--> https://www.as13030.net/status.php#collapse_12863 : issues with PD


grep dhcpcd /var/log/daemon
Mar 23 18:29:19 blau dhcpcd[72043]: DUID 00:01:00:01:20:e6:6a:2e:00:0d:b9:46:e8:b5
Mar 23 18:29:19 blau dhcpcd[72043]: em1: IAID b9:46:e8:b5
Mar 23 18:29:19 blau dhcpcd[72043]: em2: IAID b9:46:e8:b6
Mar 23 18:29:19 blau dhcpcd[72043]: em2: IA type 25 IAID 00:00:00:01
Mar 23 18:29:19 blau dhcpcd[72043]: em2: accepted reconfigure key
Mar 23 18:29:19 blau dhcpcd[72043]: em2: rebinding prior DHCPv6 lease
Mar 23 18:29:19 blau dhcpcd[72043]: vlan2: IAID ff:00:00:02
Mar 23 18:29:19 blau dhcpcd[72043]: vlan5: IAID ff:00:00:05
Mar 23 18:29:20 blau dhcpcd[72043]: em2: fe80::c671:feff:fef4:d0ff: DHCPv6 REPLY missing Prefix
Mar 23 18:29:20 blau dhcpcd[72043]: em2: no useable IA found in lease
Mar 23 18:29:20 blau dhcpcd[72043]: em2: soliciting a DHCPv6 lease
Mar 23 18:29:21 blau dhcpcd[72043]: em2: ADV 2a02:168:69f1::/48 from fe80::c671:feff:fef4:d0ff
Mar 23 18:29:21 blau dhcpcd[72043]: em2: accepted reconfigure key
Mar 23 18:29:21 blau dhcpcd[72043]: em2: REPLY6 received from fe80::c671:feff:fef4:d0ff
Mar 23 18:29:21 blau dhcpcd[72043]: em2: renew in 1200, rebind in 1800, expire in 86400 seconds
Mar 23 18:29:21 blau dhcpcd[72043]: lo0: adding reject route to 2a02:168:69f1::/48 via ::1
Mar 23 18:29:21 blau dhcpcd[72043]: em2: delegated prefix 2a02:168:69f1::/48
Mar 23 18:29:21 blau dhcpcd[72043]: em1: adding address 2a02:168:69f1:1::1/64
Mar 23 18:29:21 blau dhcpcd[72043]: vlan2: adding address 2a02:168:69f1:2::1/64
Mar 23 18:29:21 blau dhcpcd[72043]: vlan5: adding address 2a02:168:69f1:5::1/64
Mar 23 18:29:21 blau dhcpcd[72043]: em1: adding route to 2a02:168:69f1:1::/64
Mar 23 18:29:21 blau dhcpcd[72043]: vlan2: adding route to 2a02:168:69f1:2::/64
Mar 23 18:29:21 blau dhcpcd[72043]: vlan5: adding route to 2a02:168:69f1:5::/64
Mar 23 18:29:21 blau dhcpcd[72043]: forked to background, child pid 56292
Mar 23 18:59:21 blau dhcpcd[56292]: em2: failed to renew DHCPv6, rebinding
Mar 23 18:59:22 blau dhcpcd[56292]: em2: fe80::c671:feff:fef4:d0ff: DHCPv6 REPLY missing Prefix
Mar 23 18:59:22 blau dhcpcd[56292]: em2: no useable IA found in lease
Mar 23 18:59:22 blau dhcpcd[56292]: em1: deleting address 2a02:168:69f1:1::1/64
Mar 23 18:59:22 blau dhcpcd[56292]: lo0: deleting reject route to 2a02:168:69f1::/48 via ::1
Mar 23 18:59:22 blau dhcpcd[56292]: em1: deleting route to 2a02:168:69f1:1::/64
Mar 23 18:59:22 blau dhcpcd[56292]: vlan2: deleting address 2a02:168:69f1:2::1/64
Mar 23 18:59:22 blau dhcpcd[56292]: vlan2: deleting route to 2a02:168:69f1:2::/64
Mar 23 18:59:22 blau dhcpcd[56292]: vlan5: deleting address 2a02:168:69f1:5::1/64
Mar 23 18:59:22 blau dhcpcd[56292]: vlan5: deleting route to 2a02:168:69f1:5::/64
Mar 23 18:59:22 blau dhcpcd[56292]: em2: soliciting a DHCPv6 lease
Mar 23 18:59:22 blau dhcpcd[56292]: em2: ADV 2a02:168:69f1::/48 from fe80::c671:feff:fef4:d0ff
Mar 23 18:59:22 blau dhcpcd[56292]: em2: accepted reconfigure key
Mar 23 18:59:22 blau dhcpcd[56292]: lo0: adding reject route to 2a02:168:69f1::/48 via ::1
Mar 23 18:59:22 blau dhcpcd[56292]: em1: adding address 2a02:168:69f1:1::1/64
Mar 23 18:59:22 blau dhcpcd[56292]: em1: adding route to 2a02:168:69f1:1::/64
Mar 23 19:29:22 blau dhcpcd[56292]: em2: failed to renew DHCPv6, rebinding
Mar 23 19:29:23 blau dhcpcd[56292]: em2: fe80::c671:feff:fef4:d0ff: DHCPv6 REPLY missing Prefix
Mar 23 19:29:23 blau dhcpcd[56292]: em2: no useable IA found in lease
Mar 23 19:29:23 blau dhcpcd[56292]: lo0: deleting reject route to 2a02:168:69f1::/48 via ::1
Mar 23 19:29:23 blau dhcpcd[56292]: em1: deleting address 2a02:168:69f1:1::1/64
Mar 23 19:29:23 blau dhcpcd[56292]: em1: deleting route to 2a02:168:69f1:1::/64
Mar 23 19:29:23 blau dhcpcd[56292]: em2: soliciting a DHCPv6 lease
Mar 23 19:29:23 blau dhcpcd[56292]: em2: ADV 2a02:168:69f1::/48 from fe80::c671:feff:fef4:d0ff
Mar 23 19:29:23 blau dhcpcd[56292]: em2: accepted reconfigure key
Mar 23 19:29:23 blau dhcpcd[56292]: lo0: adding reject route to 2a02:168:69f1::/48 via ::1
Mar 23 19:29:23 blau dhcpcd[56292]: vlan2: adding address 2a02:168:69f1:2::1/64
Mar 23 19:29:23 blau dhcpcd[56292]: vlan2: adding route to 2a02:168:69f1:2::/64
Mar 23 19:59:23 blau dhcpcd[56292]: em2: failed to renew DHCPv6, rebinding
Mar 23 19:59:24 blau dhcpcd[56292]: em2: fe80::c671:feff:fef4:d0ff: DHCPv6 REPLY missing Prefix
Mar 23 19:59:24 blau dhcpcd[56292]: em2: no useable IA found in lease
Mar 23 19:59:24 blau dhcpcd[56292]: lo0: deleting reject route to 2a02:168:69f1::/48 via ::1
Mar 23 19:59:24 blau dhcpcd[56292]: vlan2: deleting address 2a02:168:69f1:2::1/64
Mar 23 19:59:24 blau dhcpcd[56292]: vlan2: deleting route to 2a02:168:69f1:2::/64
Mar 23 19:59:24 blau dhcpcd[56292]: em2: soliciting a DHCPv6 lease
Mar 23 19:59:24 blau dhcpcd[56292]: em2: ADV 2a02:168:69f1::/48 from fe80::c671:feff:fef4:d0ff
Mar 23 19:59:25 blau dhcpcd[56292]: em2: accepted reconfigure key
Mar 23 19:59:25 blau dhcpcd[56292]: lo0: adding reject route to 2a02:168:69f1::/48 via ::1
Mar 23 19:59:25 blau dhcpcd[56292]: vlan5: adding address 2a02:168:69f1:5::1/64
Mar 23 19:59:25 blau dhcpcd[56292]: vlan5: adding route to 2a02:168:69f1:5::/64
Mar 23 20:29:25 blau dhcpcd[56292]: em2: failed to renew DHCPv6, rebinding
Mar 23 20:29:25 blau dhcpcd[56292]: em2: fe80::c671:feff:fef4:d0ff: DHCPv6 REPLY missing Prefix
Mar 23 20:29:25 blau dhcpcd[56292]: em2: no useable IA found in lease
Mar 23 20:29:25 blau dhcpcd[56292]: lo0: deleting reject route to 2a02:168:69f1::/48 via ::1
Mar 23 20:29:25 blau dhcpcd[56292]: vlan5: deleting address 2a02:168:69f1:5::1/64
Mar 23 20:29:25 blau dhcpcd[56292]: vlan5: deleting route to 2a02:168:69f1:5::/64
Mar 23 20:29:25 blau dhcpcd[56292]: em2: soliciting a DHCPv6 lease
Mar 23 20:29:26 blau dhcpcd[56292]: em2: ADV 2a02:168:69f1::/48 from fe80::c671:feff:fef4:d0ff
Mar 23 20:29:26 blau dhcpcd[56292]: em2: accepted reconfigure key
Mar 23 20:29:26 blau dhcpcd[56292]: lo0: adding reject route to 2a02:168:69f1::/48 via ::1
Mar 23 20:29:26 blau dhcpcd[56292]: em1: adding address 2a02:168:69f1:1::1/64
Mar 23 20:29:26 blau dhcpcd[56292]: em1: adding route to 2a02:168:69f1:1::/64
Mar 23 20:59:26 blau dhcpcd[56292]: em2: failed to renew DHCPv6, rebinding
Mar 23 20:59:27 blau dhcpcd[56292]: em2: fe80::c671:feff:fef4:d0ff: DHCPv6 REPLY missing Prefix
Mar 23 20:59:27 blau dhcpcd[56292]: em2: no useable IA found in lease
Mar 23 20:59:27 blau dhcpcd[56292]: lo0: deleting reject route to 2a02:168:69f1::/48 via ::1
Mar 23 20:59:27 blau dhcpcd[56292]: em1: deleting address 2a02:168:69f1:1::1/64
Mar 23 20:59:27 blau dhcpcd[56292]: em1: deleting route to 2a02:168:69f1:1::/64
Mar 23 20:59:27 blau dhcpcd[56292]: em2: soliciting a DHCPv6 lease
Mar 23 20:59:28 blau dhcpcd[56292]: em2: ADV 2a02:168:69f1::/48 from fe80::c671:feff:fef4:d0ff
Mar 23 20:59:28 blau dhcpcd[56292]: em2: accepted reconfigure key
Mar 23 20:59:28 blau dhcpcd[56292]: lo0: adding reject route to 2a02:168:69f1::/48 via ::1
Mar 23 20:59:28 blau dhcpcd[56292]: vlan2: adding address 2a02:168:69f1:2::1/64
Mar 23 20:59:28 blau dhcpcd[56292]: vlan2: adding route to 2a02:168:69f1:2::/64
Mar 23 21:29:28 blau dhcpcd[56292]: em2: failed to renew DHCPv6, rebinding
Mar 23 21:29:28 blau dhcpcd[56292]: em2: fe80::c671:feff:fef4:d0ff: DHCPv6 REPLY missing Prefix
Mar 23 21:29:28 blau dhcpcd[56292]: em2: no useable IA found in lease
Mar 23 21:29:28 blau dhcpcd[56292]: lo0: deleting reject route to 2a02:168:69f1::/48 via ::1
Mar 23 21:29:28 blau dhcpcd[56292]: vlan2: deleting address 2a02:168:69f1:2::1/64
Mar 23 21:29:28 blau dhcpcd[56292]: vlan2: deleting route to 2a02:168:69f1:2::/64
Mar 23 21:29:28 blau dhcpcd[56292]: em2: soliciting a DHCPv6 lease
Mar 23 21:29:28 blau dhcpcd[56292]: em2: ADV 2a02:168:69f1::/48 from fe80::c671:feff:fef4:d0ff
Mar 23 21:29:28 blau dhcpcd[56292]: em2: accepted reconfigure key
Mar 23 21:29:28 blau dhcpcd[56292]: lo0: adding reject route to 2a02:168:69f1::/48 via ::1
Mar 23 21:29:28 blau dhcpcd[56292]: vlan5: adding address 2a02:168:69f1:5::1/64
Mar 23 21:29:28 blau dhcpcd[56292]: vlan5: adding route to 2a02:168:69f1:5::/64
Mar 23 21:59:28 blau dhcpcd[56292]: em2: failed to renew DHCPv6, rebinding
Mar 23 21:59:28 blau dhcpcd[56292]: em2: fe80::c671:feff:fef4:d0ff: DHCPv6 REPLY missing Prefix
Mar 23 21:59:28 blau dhcpcd[56292]: em2: no useable IA found in lease
Mar 23 21:59:28 blau dhcpcd[56292]: lo0: deleting reject route to 2a02:168:69f1::/48 via ::1
Mar 23 21:59:28 blau dhcpcd[56292]: vlan5: deleting address 2a02:168:69f1:5::1/64
Mar 23 21:59:28 blau dhcpcd[56292]: vlan5: deleting route to 2a02:168:69f1:5::/64
Mar 23 21:59:28 blau dhcpcd[56292]: em2: soliciting a DHCPv6 lease
Mar 23 21:59:29 blau dhcpcd[56292]: em2: ADV 2a02:168:69f1::/48 from fe80::c671:feff:fef4:d0ff
Mar 23 21:59:29 blau dhcpcd[56292]: em2: accepted reconfigure key
Mar 23 21:59:29 blau dhcpcd[56292]: lo0: adding reject route to 2a02:168:69f1::/48 via ::1
Mar 23 21:59:29 blau dhcpcd[56292]: em1: adding address 2a02:168:69f1:1::1/64
Mar 23 21:59:29 blau dhcpcd[56292]: em1: adding route to 2a02:168:69f1:1::/64

Regards,
Remi