When I run dhcp6c in foreground I see that the lease/address is renewed but it never gets applied to WAN interface (cnmac0).
More information about my setup is documented in blog post[0]. Thanks, Hamza Twitter: @aikchar [0] http://codeghar.com/blog/openbsd-network-gateway-on-edgerouter-lite.html ===== ifconfig cnmac0 [after starting dhcp6c] ===== $ ifconfig cnmac0 cnmac0: flags=208843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF6> mtu 1500 lladdr REDACTED index 1 priority 0 llprio 3 groups: egress media: Ethernet autoselect (1000baseT full-duplex,master) status: active inet REDACTED netmask 0xfffffc00 broadcast REDACTED inet6 fe80::REDACTED%cnmac0 prefixlen 64 scopeid 0x1 inet6 2001:558:600a:3:bda6:e819:b4d1:c335 prefixlen 128 pltime 3265 vltime 3265 ===== ifconfig cnmac0 [after pltime expires] ===== $ ifconfig cnmac0 cnmac0: flags=208843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF6> mtu 1500 lladdr REDACTED index 1 priority 0 llprio 3 groups: egress media: Ethernet autoselect (1000baseT full-duplex,master) status: active inet REDACTED netmask 0xfffffc00 broadcast REDACTED inet6 fe80::REDACTED%cnmac0 prefixlen 64 scopeid 0x1 ===== /etc/hostname.cnmac0 ===== $ more /etc/hostname.cnmac0 dhcp lladdr REDACTED up inet6 autoconf !/usr/sbin/rcctl restart dhcp6c ===== /etc/dhcp6c.conf ===== $ more /etc/dhcp6c.conf interface cnmac0 { send ia-pd 0; send ia-na 1; }; id-assoc na 1 { }; id-assoc pd 0 { prefix ::/64 infinity; prefix-interface vether0 { sla-id 1; sla-len 0; }; }; ===== # dhcp6c -c /etc/dhcp6c.conf -Df cnmac0 ===== # dhcp6c -c /etc/dhcp6c.conf -Df cnmac0 Jun/23/2017 00:26:26: get_duid: extracted an existing DUID from /var/db/dhcp6c_duid: 00:01:00:01:20:c9:be:ab:44:d9:e7:9e:52:20 Jun/23/2017 00:26:26: dhcp6_ctl_authinit: failed to open /etc/dhcp6cctlkey: No such file or directory Jun/23/2017 00:26:26: client6_init: failed initialize control message authentication Jun/23/2017 00:26:26: client6_init: skip opening control port Jun/23/2017 00:26:26: cfdebug_print: <3>[interface] (9) Jun/23/2017 00:26:26: cfdebug_print: <5>[cnmac0] (6) Jun/23/2017 00:26:26: cfdebug_print: <3>begin of closure [{] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>[send] (4) Jun/23/2017 00:26:26: cfdebug_print: <3>[ia-pd] (5) Jun/23/2017 00:26:26: cfdebug_print: <3>[0] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of sentence [;] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>[send] (4) Jun/23/2017 00:26:26: cfdebug_print: <3>[ia-na] (5) Jun/23/2017 00:26:26: cfdebug_print: <3>[1] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of sentence [;] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of closure [}] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of sentence [;] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>[id-assoc] (8) Jun/23/2017 00:26:26: cfdebug_print: <13>[na] (2) Jun/23/2017 00:26:26: cfdebug_print: <13>[1] (1) Jun/23/2017 00:26:26: cfdebug_print: <13>begin of closure [{] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of closure [}] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of sentence [;] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>[id-assoc] (8) Jun/23/2017 00:26:26: cfdebug_print: <13>[pd] (2) Jun/23/2017 00:26:26: cfdebug_print: <13>[0] (1) Jun/23/2017 00:26:26: cfdebug_print: <13>begin of closure [{] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>[prefix-interface] (16) Jun/23/2017 00:26:26: cfdebug_print: <5>[vether0] (7) Jun/23/2017 00:26:26: cfdebug_print: <3>begin of closure [{] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>[sla-id] (6) Jun/23/2017 00:26:26: cfdebug_print: <3>[1] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of sentence [;] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>[sla-len] (7) Jun/23/2017 00:26:26: cfdebug_print: <3>[0] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of sentence [;] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of closure [}] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of sentence [;] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of closure [}] (1) Jun/23/2017 00:26:26: cfdebug_print: <3>end of sentence [;] (1) Jun/23/2017 00:26:26: configure_pool: called Jun/23/2017 00:26:26: clear_poolconf: called Jun/23/2017 00:26:26: dhcp6_reset_timer: reset a timer on cnmac0, state=INIT, timeo=0, retrans=727 Jun/23/2017 00:26:27: client6_send: a new XID (95e1d5) is generated Jun/23/2017 00:26:27: copy_option: set client ID (len 14) Jun/23/2017 00:26:27: copyout_option: set identity association Jun/23/2017 00:26:27: copy_option: set elapsed time (len 2) Jun/23/2017 00:26:27: copyout_option: set IA_PD Jun/23/2017 00:26:27: client6_send: send solicit to ff02::1:2%cnmac0 Jun/23/2017 00:26:27: dhcp6_reset_timer: reset a timer on cnmac0, state=SOLICIT, timeo=0, retrans=1041 Jun/23/2017 00:26:27: client6_recv: receive advertise from fe80::d62c:44ff:fe7d:b822%cnmac0 on cnmac0 Jun/23/2017 00:26:27: dhcp6_get_options: get DHCP option client ID, len 14 Jun/23/2017 00:26:27: DUID: 00:01:00:01:20:c9:be:ab:44:d9:e7:9e:52:20 Jun/23/2017 00:26:27: dhcp6_get_options: get DHCP option server ID, len 14 Jun/23/2017 00:26:27: DUID: 00:01:00:01:17:32:3d:31:14:fe:b5:d5:ab:9e Jun/23/2017 00:26:27: dhcp6_get_options: get DHCP option identity association, len 40 [111/231] Jun/23/2017 00:26:27: IA_NA: ID=1, T1=2071, T2=3314 Jun/23/2017 00:26:27: copyin_option: get DHCP option IA address, len 24 Jun/23/2017 00:26:27: copyin_option: IA_NA address: 2001:558:600a:3:bda6:e819:b4d1:c335 pltime=4143 vltime=4143 Jun/23/2017 00:26:27: dhcp6_get_options: get DHCP option IA_PD, len 41 Jun/23/2017 00:26:27: IA_PD: ID=0, T1=2071, T2=3314 Jun/23/2017 00:26:27: copyin_option: get DHCP option IA_PD prefix, len 25 Jun/23/2017 00:26:27: copyin_option: IA_PD prefix: 2601:600:967f:f12c::/64 pltime=4143 vltime=4143 Jun/23/2017 00:26:27: client6_recvadvert: server ID: 00:01:00:01:17:32:3d:31:14:fe:b5:d5:ab:9e, pref=-1 Jun/23/2017 00:26:27: client6_recvadvert: reset timer for cnmac0 to 0.914935 Jun/23/2017 00:26:28: select_server: picked a server (ID: 00:01:00:01:17:32:3d:31:14:fe:b5:d5:ab:9e) Jun/23/2017 00:26:28: client6_send: a new XID (252952) is generated Jun/23/2017 00:26:28: copy_option: set client ID (len 14) Jun/23/2017 00:26:28: copy_option: set server ID (len 14) Jun/23/2017 00:26:28: copyout_option: set IA address Jun/23/2017 00:26:28: copyout_option: set identity association Jun/23/2017 00:26:28: copy_option: set elapsed time (len 2) Jun/23/2017 00:26:28: copyout_option: set IA_PD prefix Jun/23/2017 00:26:28: copyout_option: set IA_PD Jun/23/2017 00:26:28: client6_send: send request to ff02::1:2%cnmac0 Jun/23/2017 00:26:28: dhcp6_reset_timer: reset a timer on cnmac0, state=REQUEST, timeo=0, retrans=907 Jun/23/2017 00:26:28: client6_recv: receive reply from fe80::d62c:44ff:fe7d:b822%cnmac0 on cnmac0 Jun/23/2017 00:26:28: dhcp6_get_options: get DHCP option client ID, len 14 Jun/23/2017 00:26:28: DUID: 00:01:00:01:20:c9:be:ab:44:d9:e7:9e:52:20 Jun/23/2017 00:26:28: dhcp6_get_options: get DHCP option server ID, len 14 Jun/23/2017 00:26:28: DUID: 00:01:00:01:17:32:3d:31:14:fe:b5:d5:ab:9e Jun/23/2017 00:26:28: dhcp6_get_options: get DHCP option identity association, len 40 Jun/23/2017 00:26:28: IA_NA: ID=1, T1=2071, T2=3313 Jun/23/2017 00:26:28: copyin_option: get DHCP option IA address, len 24 Jun/23/2017 00:26:28: copyin_option: IA_NA address: 2001:558:600a:3:bda6:e819:b4d1:c335 pltime=4142 vltime=4142 Jun/23/2017 00:26:28: dhcp6_get_options: get DHCP option IA_PD, len 41 Jun/23/2017 00:26:28: IA_PD: ID=0, T1=2071, T2=3313 Jun/23/2017 00:26:28: copyin_option: get DHCP option IA_PD prefix, len 25 [79/231] Jun/23/2017 00:26:28: copyin_option: IA_PD prefix: 2601:600:967f:f12c::/64 pltime=4142 vltime=4142 Jun/23/2017 00:26:28: get_ia: make an IA: PD-0 Jun/23/2017 00:26:28: update_prefix: create a prefix 2601:600:967f:f12c::/64 pltime=4142, vltime=4142 Jun/23/2017 00:26:28: ifaddrconf: add an address 2601:600:967f:f12c:fce1:baff:fed0:5c85/64 on vether0 Jun/23/2017 00:26:28: get_ia: make an IA: NA-1 Jun/23/2017 00:26:28: update_address: create an address 2001:558:600a:3:bda6:e819:b4d1:c335 pltime=4142, vltime=4142 Jun/23/2017 00:26:28: ifaddrconf: add an address 2001:558:600a:3:bda6:e819:b4d1:c335/128 on cnmac0 Jun/23/2017 00:26:28: dhcp6_remove_event: removing an event on cnmac0, state=REQUEST Jun/23/2017 00:26:28: dhcp6_remove_event: removing server (ID: 00:01:00:01:17:32:3d:31:14:fe:b5:d5:ab:9e) Jun/23/2017 00:26:28: client6_recvreply: got an expected reply, sleeping. Jun/23/2017 01:00:59: ia_timo: IA timeout for NA-1, state=ACTIVE Jun/23/2017 01:00:59: dhcp6_reset_timer: reset a timer on cnmac0, state=RENEW, timeo=0, retrans=9972 Jun/23/2017 01:00:59: client6_send: a new XID (cdad91) is generated Jun/23/2017 01:00:59: copy_option: set client ID (len 14) Jun/23/2017 01:00:59: copy_option: set server ID (len 14) Jun/23/2017 01:00:59: copyout_option: set IA address Jun/23/2017 01:00:59: copyout_option: set identity association Jun/23/2017 01:00:59: copy_option: set elapsed time (len 2) Jun/23/2017 01:00:59: client6_send: send renew to ff02::1:2%cnmac0 Jun/23/2017 01:00:59: ia_timo: IA timeout for PD-0, state=ACTIVE Jun/23/2017 01:00:59: dhcp6_reset_timer: reset a timer on cnmac0, state=RENEW, timeo=0, retrans=10845 [47/231] Jun/23/2017 01:00:59: client6_send: a new XID (4e9813) is generated Jun/23/2017 01:00:59: copy_option: set client ID (len 14) Jun/23/2017 01:00:59: copy_option: set server ID (len 14) Jun/23/2017 01:00:59: copy_option: set elapsed time (len 2) Jun/23/2017 01:00:59: copyout_option: set IA_PD prefix Jun/23/2017 01:00:59: copyout_option: set IA_PD Jun/23/2017 01:00:59: client6_send: send renew to ff02::1:2%cnmac0 Jun/23/2017 01:00:59: client6_recv: receive reply from fe80::d62c:44ff:fe7d:b822%cnmac0 on cnmac0 Jun/23/2017 01:00:59: dhcp6_get_options: get DHCP option client ID, len 14 Jun/23/2017 01:00:59: DUID: 00:01:00:01:20:c9:be:ab:44:d9:e7:9e:52:20 Jun/23/2017 01:00:59: dhcp6_get_options: get DHCP option server ID, len 14 Jun/23/2017 01:00:59: DUID: 00:01:00:01:17:32:3d:31:14:fe:b5:d5:ab:9e Jun/23/2017 01:00:59: dhcp6_get_options: get DHCP option identity association, len 40 Jun/23/2017 01:00:59: IA_NA: ID=1, T1=3600, T2=5760 Jun/23/2017 01:00:59: copyin_option: get DHCP option IA address, len 24 Jun/23/2017 01:00:59: copyin_option: IA_NA address: 2001:558:600a:3:bda6:e819:b4d1:c335 pltime=7200 vltime=7200 Jun/23/2017 01:00:59: get_ia: update an IA: NA-1 Jun/23/2017 01:00:59: update_address: update an address 2001:558:600a:3:bda6:e819:b4d1:c335 pltime=7200, vltime=7200 Jun/23/2017 01:00:59: dhcp6_remove_event: removing an event on cnmac0, state=RENEW Jun/23/2017 01:00:59: client6_recvreply: got an expected reply, sleeping. Jun/23/2017 01:00:59: client6_recv: receive reply from fe80::d62c:44ff:fe7d:b822%cnmac0 on cnmac0 Jun/23/2017 01:00:59: dhcp6_get_options: get DHCP option client ID, len 14 Jun/23/2017 01:00:59: DUID: 00:01:00:01:20:c9:be:ab:44:d9:e7:9e:52:20 Jun/23/2017 01:00:59: dhcp6_get_options: get DHCP option server ID, len 14 Jun/23/2017 01:00:59: DUID: 00:01:00:01:17:32:3d:31:14:fe:b5:d5:ab:9e Jun/23/2017 01:00:59: dhcp6_get_options: get DHCP option IA_PD, len 41 Jun/23/2017 01:00:59: IA_PD: ID=0, T1=3600, T2=5760 Jun/23/2017 01:00:59: copyin_option: get DHCP option IA_PD prefix, len 25 Jun/23/2017 01:00:59: copyin_option: IA_PD prefix: 2601:600:967f:f12c::/64 pltime=7200 vltime=7200 Jun/23/2017 01:00:59: get_ia: update an IA: PD-0 Jun/23/2017 01:00:59: update_prefix: update a prefix 2601:600:967f:f12c::/64 pltime=7200, vltime=7200 Jun/23/2017 01:00:59: dhcp6_remove_event: removing an event on cnmac0, state=RENEW [15/231] Jun/23/2017 01:00:59: client6_recvreply: got an expected reply, sleeping.
