I got DHCPv6-PD aka prefix delegation up and running on a FortiGate. Yes! ✅ Configuring it is tricky since it’s not always clear, which options to use. You cannot see everything in the GUI (it even changes depending on other options made later on or selects hidden and wrong default values), hence you must set specific options via the CLI. I navigated around some bugs and finally got it running. Here we go:
Please refer to my previous blog post about DHCPv6 prefix delegation in detail.
Setup Notes
This is the basic lab, showing the ISP connection (green box, though not of interest for the following configs), as well as the Internet connection from the Forti (red box) and the internal clients (blue box):
- I’m using a FG-60F with FortiOS 7.6.1.
- The wan1 interface is attached to an AVM FRITZ!BOX 7560 with FRITZ!OS 07.30, acting as the DHCPv6 server for addresses (IA_NA) as well as for prefixes (IA_PD, handing out /62 prefixes).
- Have a look at RFC 8415 “Dynamic Host Configuration Protocol for IPv6 (DHCPv6)” respectively the IANA “Dynamic Host Configuration Protocol for IPv6 (DHCPv6)” for more details concerning the DHCPv6 option types.
- The internal interface shall use a /64 out of the delegated prefix.
- With FortiOS 7.4.6, the FortiGate did not succeed in requesting anything over DHCPv6 at all. I’ve no idea, why. Some notes here.
Eventually, I tried an upgrade to FortiOS 7.6.1, in which it worked.The same problem still exists with FortiOS 7.6.1. In the end, disabling/enabling the DHCPv6 client on the wan1 interface made it work. - The FortiGate receives its default route through the RA from the Fritzbox. (Remember that DHCPv6 does NOT send a default route at all. Everyone must rely on RAs in any case!)
Though possible, I did not succeed in configuring the RA for the internal interface, serving a /64 out of the delegated range for the SLAAC method. Within the RA, the prefix did not show up at all. :(Most likely I forgot to set the IAPD value with “set delegated-prefix-iaid 5” within the “config ip6-delegated-prefix-list” section since I was able to get this running on some later scenarios.- Nevertheless, I configured the internal interface to send the RA with the M-flag while setting up a stateful DHCPv6 server on the FortiGate itself. With this option, I was able to hand out a /64 to the internal clients. ✅
- On several configuration options, you can choose a “subnet” which defaults to “::/0” in the GUI as well as in the CLI. This is like an identifier to set the n-th network within the delegated prefix. Always change this to something with a /64 (rather than the default /0) to get the job done correctly. Otherwise, the FortiGate chooses the full delegated prefix such as a /62 (rather than a /64) and uses it on its interface, which stands against any best practice, will kill SLAAC, makes me horribly sad, and so on.
- Within the configuration, you have to choose an “IAPD” value which defaults to 5. This value is randomly chosen by Fortinet and used later on to identify the delegated prefix. I left it by this value of 5. The ugly thing: You have to set this value for the stateful DHCPv6 server as well, but this cannot be done through the GUI. If you activate the DHCPv6 server with the “Delegated” IP mode, you’ll get an error in the GUI. That is: At least for this single entry you must use the CLI.
- At least in FortiOS 7.6.1 there is a bug in which the FortiGate does not reply to RSs with RAs. That is: Your clients won’t get the default route until the first RA that is sent on a regular basis by the Forti is received by those clients. As a workaround, I’ve set the min- and max-interval values to 10 respectively 30 seconds. Since the defaults are way higher (600 seconds = 10 minutes), clients have to wait really long until IPv6 is up and running.
- Another bug is related to the output of the routing table for IPv6, since it does not show the default route that is gathered from the RA on the wan1 interface. Funnily, this is only true for the get router info6 routing-table but not for the diagnose ipv6 route list output.
- Other quite useful information about FortiGate’s DHCPv6 configuration options can be found here and there.
Configuration of the wan1 Interface
Through the GUI (kudos to Fortinet, in that we can now configure more IPv6 stuff through the GUI ;)). Note the “IAPD 5” without a prefix hint.
CLI:
config system interface
edit "wan1"
set vdom "root"
set mode dhcp
set allowaccess ping
config ipv6
set ip6-mode dhcp
set ip6-allowaccess ping
set dhcp6-prefix-delegation enable
config dhcp6-iapd-list
edit 5
next
end
end
next
end
Configuration of the internal Interface
Basics are possible through the GUI, while you MUST set some values through the CLI later.
Here is everything from the CLI in which you can set the “delegated-prefix-iaid 5” for the DHCPv6 server. Note that I changed the “ip6-other-flag” to disable since for stateful DHCPv6 you only need the M-flag:
config system interface
edit "internal"
set vdom "root"
config ipv6
set ip6-mode delegated
set ip6-allowaccess ping https ssh
set ip6-send-adv enable
set ip6-manage-flag enable
set ip6-other-flag disable
set ip6-max-interval 30
set ip6-min-interval 10
set ip6-delegated-prefix-iaid 5
set ip6-upstream-interface "wan1"
set ip6-subnet ::1/64
end
next
end
config system dhcp6 server
edit 1
set dns-service delegated
set subnet ::/64
set interface "internal"
set upstream-interface "wan1"
set delegated-prefix-iaid 5
set ip-mode delegated
next
end
Information
Some information can be gathered through the GUI and the CLI. Note the missing IPv6 default route in the GUI as well as in the first CLI command, while the second one lists the “gwy”:
FortiGate-60F # get router info6 routing-table
IPv6 Routing Table
Codes: K - kernel route, C - connected, S - static, R - RIP, O - OSPF,
IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, B - BGP, V - BGP VPNv6
* - candidate default
Timers: Uptime
Routing table for VRF=0
C ::1/128 via ::, root, 00:19:47
C 2003:c6:af32:8400:6d5:90ff:fe42:8612/128 via ::, wan1, 00:07:38
C 2003:c6:af32:84fc::/64 via ::, internal, 00:03:47
FortiGate-60F #
FortiGate-60F #
FortiGate-60F #
FortiGate-60F # diagnose ipv6 route list
vf=0 vrf=0 tbl=65534 type=02(local) protocol=0(unspec) flag=80200000 prio=0 dst:::1/128 dev=18(root) pmtu=16436
vf=0 vrf=0 tbl=65534 type=02(local) protocol=0(unspec) flag=80200000 prio=0 dst:2003:c6:af32:8400:6d5:90ff:fe42:8612/128 dev=18(root) pmtu=16436
vf=0 vrf=0 tbl=65534 type=01(unicast) protocol=2(kernel) flag=00000000 prio=256 dst:2003:c6:af32:8400:6d5:90ff:fe42:8612/128 dev=5(wan1) pmtu=1492
vf=0 vrf=0 tbl=65534 type=02(local) protocol=0(unspec) flag=00300000 prio=0 dst:2003:c6:af32:84fc::/128 dev=18(root) pmtu=16436
vf=0 vrf=0 tbl=65534 type=02(local) protocol=0(unspec) flag=80200000 prio=0 dst:2003:c6:af32:84fc::1/128 dev=18(root) pmtu=16436
vf=0 vrf=0 tbl=65534 type=01(unicast) protocol=0(unspec) flag=01000200 prio=0 dst:2003:c6:af32:84fc::2/128 dev=23(internal) pmtu=1500
vf=0 vrf=0 tbl=65534 type=01(unicast) protocol=2(kernel) flag=00400000 prio=256 dst:2003:c6:af32:84fc::/64 dev=23(internal) pmtu=1500
vf=0 vrf=0 tbl=65534 type=02(local) protocol=0(unspec) flag=00300000 prio=0 dst:fe80::/128 dev=18(root) pmtu=16436
vf=0 vrf=0 tbl=65534 type=02(local) protocol=0(unspec) flag=00300000 prio=0 dst:fe80::/128 dev=18(root) pmtu=16436
[...]
vf=0 vrf=0 tbl=65534 type=01(unicast) protocol=3(boot) flag=00000000 prio=256 dst:ff00::/8 dev=5(wan1) pmtu=1492
vf=0 vrf=0 tbl=65534 type=01(unicast) protocol=3(boot) flag=00000000 prio=256 dst:ff00::/8 dev=6(wan2) pmtu=1500
vf=0 vrf=0 tbl=65534 type=01(unicast) protocol=2(kernel) flag=00450000 prio=1024 gwy:fe80::7eff:4dff:fe93:9b5 dev=5(wan1) pmtu=1492
vf=0 vrf=0 tbl=0 type=07(unreachable) protocol=2(kernel) flag=00200000 prio=-1 dev=18(root) pmtu=16436
FortiGate-60F #
The following Wireshark screenshot shows the DHCPv6 messages between the FortiGate (wan1) and the Fritzbox. The first reply (message nr. 6) is one that wasn’t working correctly (status code 13 = no binding), for whatever reason. I disabled/enabled DHCPv6 on wan1 again. Messages 18-21 are the correct ones, handing out the /62 prefix:
This is the DHCPv6 debug log during the complete startup of the wan1 interface. Maybe someone finds hints about the mentioned DHCPv6 “no binding” issues:
=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2024.12.19 09:13:30 =~=~=~=~=~=~=~=~=~=~=~= login as: admin admin@192.168.1.99's password: FortiGate-60F # diagnose debug reset FortiGate-60F # diagnose debug console timestamp enable FortiGate-60F # diagnose debug application dhcp6c 255 Debug messages will be on for 30 minutes. FortiGate-60F # diagnose debug enable FortiGate-60F # 2024-12-19 00:14:10 [debug]dhcp6_check_timer() called 2024-12-19 00:14:10 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:14:21 [debug]dhcp6_check_timer() called 2024-12-19 00:14:21 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:14:32 [debug]dhcp6_check_timer() called 2024-12-19 00:14:32 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:14:35 [info]dhcp6c_kernel_event_handler() dhcp6c_kernel_event_handler called 2024-12-19 00:14:35 [info]dhcp6c_intf_changed() intf changed. caller=0x92bae8 2024-12-19 00:14:35 [debug]dhcp6_check_timer() called 2024-12-19 00:14:35 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:36 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:14:36 [debug]dhcp6_check_timer() called 2024-12-19 00:14:36 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:36 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:14:36 [debug]dhcp6_check_timer() called 2024-12-19 00:14:36 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:14:36 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:14:36 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:14:36 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:14:36 [debug]dhcp6_check_timer() called 2024-12-19 00:14:36 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:14:36 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:14:36 [debug]dhcp6_check_timer() called 2024-12-19 00:14:36 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:14:37 [info]dhcp6c_kernel_event_handler() dhcp6c_kernel_event_handler called 2024-12-19 00:14:37 [info]dhcp6c_intf_changed() intf changed. caller=0x92bae8 2024-12-19 00:14:37 [debug]dhcp6_check_timer() called 2024-12-19 00:14:37 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:39 [info]dhcp6c_kernel_event_handler() dhcp6c_kernel_event_handler called 2024-12-19 00:14:39 [info]dhcp6c_intf_changed() intf changed. caller=0x92bae8 2024-12-19 00:14:39 [debug]dhcp6_check_timer() called 2024-12-19 00:14:39 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:40 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:14:40 [info]dhcp6c_nlm_handler() Restart and renew interface wan1. 2024-12-19 00:14:40 [debug]dhcp6_remove_event() removing an event on wan1, state=SOLICIT 2024-12-19 00:14:40 [warning]uncache_intf6_info() delete interface wan1 cache 2024-12-19 00:14:40 [debug]dhcp6c_intf_get_duid() called 2024-12-19 00:14:40 [debug]dhcp6c_intf_get_duid() Generated a new DUID: 00:03:00:01:04:d5:90:42:86:12. 2024-12-19 00:14:40 [debug]dhcp6_reset_timer() reset a timer on wan1, state=INIT, timeo=0, retrans=76 2024-12-19 00:14:40 [info]dhcp6c_nlm_handler() Restart and renew interface wan1. 2024-12-19 00:14:40 [debug]dhcp6_remove_event() removing an event on wan1, state=INIT 2024-12-19 00:14:40 [warning]uncache_intf6_info() delete interface wan1 cache 2024-12-19 00:14:40 [debug]dhcp6c_intf_get_duid() called 2024-12-19 00:14:40 [debug]dhcp6c_intf_get_duid() Generated a new DUID: 00:03:00:01:04:d5:90:42:86:12. 2024-12-19 00:14:40 [debug]dhcp6_reset_timer() reset a timer on wan1, state=INIT, timeo=0, retrans=188 2024-12-19 00:14:40 [info]dhcp6c_nlm_handler() Restart and renew interface wan1. 2024-12-19 00:14:40 [debug]dhcp6_remove_event() removing an event on wan1, state=INIT 2024-12-19 00:14:40 [warning]uncache_intf6_info() delete interface wan1 cache 2024-12-19 00:14:40 [debug]dhcp6c_intf_get_duid() called 2024-12-19 00:14:40 [debug]dhcp6c_intf_get_duid() Generated a new DUID: 00:03:00:01:04:d5:90:42:86:12. 2024-12-19 00:14:40 [debug]dhcp6_reset_timer() reset a timer on wan1, state=INIT, timeo=0, retrans=561 2024-12-19 00:14:40 [debug]dhcp6_check_timer() called 2024-12-19 00:14:40 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:40 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:14:40 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:14:40 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:14:40 [info]client6_mainloop() cmdb msg received, sock =5 2024-12-19 00:14:40 [info]dhcp6c_intf_changed() intf changed. caller=0x23f9be8 2024-12-19 00:14:40 [debug]dhcp6_check_timer() called 2024-12-19 00:14:40 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:40 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:14:40 [debug]dhcp6_check_timer() called 2024-12-19 00:14:40 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:43 [debug]dhcp6_check_timer() called 2024-12-19 00:14:43 [debug]dhcp6_check_timer() timer func=0x9274f0 2024-12-19 00:14:43 [debug]client6_send() a new XID (503090) is generated 2024-12-19 00:14:43 [debug]copy_option() set client ID (len 10) 2024-12-19 00:14:43 [debug]copyout_option() set identity association 2024-12-19 00:14:43 [debug]copy_option() set elapsed time (len 2) 2024-12-19 00:14:43 [debug]copy_option() set option request (len 4) 2024-12-19 00:14:43 [debug]copyout_option() set IA_PD 2024-12-19 00:14:43 [debug]client6_send() send solicit to ff02::1:2%wan1 2024-12-19 00:14:43 [debug]dhcp6_reset_timer() reset a timer on wan1, state=SOLICIT, timeo=0, retrans=1049 2024-12-19 00:14:43 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:14:43 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:14:43 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:14:43 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:14:43 [debug]dhcp6_check_timer() called 2024-12-19 00:14:43 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:43 [info]client6_mainloop() msg received, sock =11 2024-12-19 00:14:43 [debug]client6_recv() receive advertise from fe80::7eff:4dff:fe93:9b5%wan1 on wan1 2024-12-19 00:14:43 [debug]dhcp6_get_options() get DHCP option client ID, len 10 2024-12-19 00:14:43 [debug] DUID: 00:03:00:01:04:d5:90:42:86:12 2024-12-19 00:14:43 [debug]dhcp6_get_options() get DHCP option server ID, len 10 2024-12-19 00:14:43 [debug] DUID: 00:03:00:01:7c:ff:4d:93:09:b5 2024-12-19 00:14:43 [debug]dhcp6_get_options() get DHCP option preference, len 1 2024-12-19 00:14:43 [debug] preference: 0 2024-12-19 00:14:43 [debug]dhcp6_get_options() get DHCP option DNS, len 16 2024-12-19 00:14:43 [debug]dhcp6_get_options() get DHCP option opt_86, len 16 2024-12-19 00:14:43 [info]dhcp6_get_options() unknown or unexpected DHCP6 option opt_86, len 16 2024-12-19 00:14:43 [debug]dhcp6_get_options() get DHCP option identity association, len 40 2024-12-19 00:14:43 [debug] IA_NA: ID=5, T1=1800, T2=2880 2024-12-19 00:14:43 [debug]copyin_option() get DHCP option IA address, len 24 2024-12-19 00:14:43 [debug]copyin_option() IA_NA address: 2003:c6:af32:8400:6d5:90ff:fe42:8612 pltime=3600 vltime=7200 2024-12-19 00:14:43 [debug]dhcp6_get_options() get DHCP option IA_PD, len 41 2024-12-19 00:14:43 [debug] IA_PD: ID=5, T1=1800, T2=2880 2024-12-19 00:14:43 [debug]copyin_option() get DHCP option IA_PD prefix, len 25 2024-12-19 00:14:43 [debug]copyin_option() IA_PD prefix: 2003:c6:af32:84fc::/62 pltime=3600 vltime=7200 2024-12-19 00:14:43 [debug]client6_recvadvert() server ID: 00:03:00:01:7c:ff:4d:93:09:b5, pref=0 2024-12-19 00:14:43 [debug]client6_recvadvert() reset timer for wan1 to 0.990649 2024-12-19 00:14:43 [debug]dhcp6_check_timer() called 2024-12-19 00:14:43 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:45 [info]client6_mainloop() cmdb msg received, sock =5 2024-12-19 00:14:45 [info]dhcp6c_intf_changed() intf changed. caller=0x23f9be8 2024-12-19 00:14:45 [debug]dhcp6_check_timer() called 2024-12-19 00:14:45 [debug]dhcp6_check_timer() timer func=0x9274f0 2024-12-19 00:14:45 [debug]select_server() picked a server (ID: 00:03:00:01:7c:ff:4d:93:09:b5) 2024-12-19 00:14:45 [debug]client6_send() a new XID (1cf373) is generated 2024-12-19 00:14:45 [debug]copy_option() set client ID (len 10) 2024-12-19 00:14:45 [debug]copy_option() set server ID (len 10) 2024-12-19 00:14:45 [debug]copyout_option() set IA address 2024-12-19 00:14:45 [debug]copyout_option() set identity association 2024-12-19 00:14:45 [debug]copy_option() set elapsed time (len 2) 2024-12-19 00:14:45 [debug]copy_option() set option request (len 4) 2024-12-19 00:14:45 [debug]copyout_option() set IA_PD prefix 2024-12-19 00:14:45 [debug]copyout_option() set IA_PD 2024-12-19 00:14:45 [debug]client6_send() send request to ff02::1:2%wan1 2024-12-19 00:14:45 [debug]dhcp6_reset_timer() reset a timer on wan1, state=REQUEST, timeo=0, retrans=1080 2024-12-19 00:14:45 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:45 [info]client6_mainloop() msg received, sock =11 2024-12-19 00:14:45 [debug]client6_recv() receive reply from fe80::7eff:4dff:fe93:9b5%wan1 on wan1 2024-12-19 00:14:45 [debug]dhcp6_get_options() get DHCP option client ID, len 10 2024-12-19 00:14:45 [debug] DUID: 00:03:00:01:04:d5:90:42:86:12 2024-12-19 00:14:45 [debug]dhcp6_get_options() get DHCP option server ID, len 10 2024-12-19 00:14:45 [debug] DUID: 00:03:00:01:7c:ff:4d:93:09:b5 2024-12-19 00:14:45 [debug]dhcp6_get_options() get DHCP option status code, len 16 2024-12-19 00:14:45 [debug] status code: no binding 2024-12-19 00:14:45 [info]client6_recvreply() status code: no binding 2024-12-19 00:14:45 [debug]dhcp6c_ha_sync_send_lease_to() [dhcp6c_ha_sync_send_lease_to] serialno=' (null)', intf='wan1' 2024-12-19 00:14:45 [debug]dhcp6c_ha_sync_send_lease_to() send DHCP6_HA_SYNC_T_LEASE 2024-12-19 00:14:45 [debug]dhcp6_remove_event() removing an event on wan1, state=REQUEST 2024-12-19 00:14:45 [debug]dhcp6_remove_event() removing server (ID: 00:03:00:01:7c:ff:4d:93:09:b5) 2024-12-19 00:14:45 [debug]client6_recvreply() got an expected reply, sleeping. 2024-12-19 00:14:45 [debug]dhcp6_check_timer() called 2024-12-19 00:14:45 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:48 [debug]dhcp6_check_timer() called 2024-12-19 00:14:48 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:14:48 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:14:48 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:14:48 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:14:48 [debug]dhcp6_check_timer() called 2024-12-19 00:14:48 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:50 [debug]dhcp6_check_timer() called 2024-12-19 00:14:50 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:52 [debug]dhcp6_check_timer() called 2024-12-19 00:14:52 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:54 [debug]dhcp6_check_timer() called 2024-12-19 00:14:54 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:56 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:14:56 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:14:56 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:14:56 [debug]dhcp6_check_timer() called 2024-12-19 00:14:56 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:14:59 [debug]dhcp6_check_timer() called 2024-12-19 00:14:59 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:14:59 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:14:59 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:14:59 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:14:59 [debug]dhcp6_check_timer() called 2024-12-19 00:14:59 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:01 [debug]dhcp6_check_timer() called 2024-12-19 00:15:01 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:03 [debug]dhcp6_check_timer() called 2024-12-19 00:15:03 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:05 [debug]dhcp6_check_timer() called 2024-12-19 00:15:05 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:07 [debug]dhcp6_check_timer() called 2024-12-19 00:15:07 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:09 [debug]dhcp6_check_timer() called 2024-12-19 00:15:09 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:11 [debug]dhcp6_check_timer() called 2024-12-19 00:15:11 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:13 [debug]dhcp6_check_timer() called 2024-12-19 00:15:13 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:15 [debug]dhcp6_check_timer() called 2024-12-19 00:15:15 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:17 [debug]dhcp6_check_timer() called 2024-12-19 00:15:17 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:19 [debug]dhcp6_check_timer() called 2024-12-19 00:15:19 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:21 [debug]dhcp6_check_timer() called 2024-12-19 00:15:21 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:23 [debug]dhcp6_check_timer() called 2024-12-19 00:15:23 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:25 [debug]dhcp6_check_timer() called 2024-12-19 00:15:25 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:26 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:15:26 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:15:26 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:15:26 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:15:26 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:15:26 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:15:26 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:15:26 [debug]dhcp6_check_timer() called 2024-12-19 00:15:26 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:29 [debug]dhcp6_check_timer() called 2024-12-19 00:15:29 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:15:29 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:15:29 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:15:29 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:15:29 [debug]dhcp6_check_timer() called 2024-12-19 00:15:29 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:29 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:15:29 [debug]dhcp6_check_timer() called 2024-12-19 00:15:29 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:31 [debug]dhcp6_check_timer() called 2024-12-19 00:15:31 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:33 [debug]dhcp6_check_timer() called 2024-12-19 00:15:33 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:35 [debug]dhcp6_check_timer() called 2024-12-19 00:15:35 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:37 [debug]dhcp6_check_timer() called 2024-12-19 00:15:37 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:39 [debug]dhcp6_check_timer() called 2024-12-19 00:15:39 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:41 [debug]dhcp6_check_timer() called 2024-12-19 00:15:41 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:43 [debug]dhcp6_check_timer() called 2024-12-19 00:15:43 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:45 [debug]dhcp6_check_timer() called 2024-12-19 00:15:45 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:47 [debug]dhcp6_check_timer() called 2024-12-19 00:15:47 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:49 [debug]dhcp6_check_timer() called 2024-12-19 00:15:49 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:51 [debug]dhcp6_check_timer() called 2024-12-19 00:15:51 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:53 [debug]dhcp6_check_timer() called 2024-12-19 00:15:53 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:55 [debug]dhcp6_check_timer() called 2024-12-19 00:15:55 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:57 [debug]dhcp6_check_timer() called 2024-12-19 00:15:57 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:15:59 [debug]dhcp6_check_timer() called 2024-12-19 00:15:59 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:01 [debug]dhcp6_check_timer() called 2024-12-19 00:16:01 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:03 [debug]dhcp6_check_timer() called 2024-12-19 00:16:03 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:05 [debug]dhcp6_check_timer() called 2024-12-19 00:16:05 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:07 [debug]dhcp6_check_timer() called 2024-12-19 00:16:07 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:09 [debug]dhcp6_check_timer() called 2024-12-19 00:16:09 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:11 [debug]dhcp6_check_timer() called 2024-12-19 00:16:11 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:14 [debug]dhcp6_check_timer() called 2024-12-19 00:16:14 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:16 [debug]dhcp6_check_timer() called 2024-12-19 00:16:16 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:18 [debug]dhcp6_check_timer() called 2024-12-19 00:16:18 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:20 [debug]dhcp6_check_timer() called 2024-12-19 00:16:20 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:22 [debug]dhcp6_check_timer() called 2024-12-19 00:16:22 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:24 [debug]dhcp6_check_timer() called 2024-12-19 00:16:24 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:26 [debug]dhcp6_check_timer() called 2024-12-19 00:16:26 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:26 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:16:26 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:16:26 [debug]dhcp6_check_timer() called 2024-12-19 00:16:26 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:29 [debug]dhcp6_check_timer() called 2024-12-19 00:16:29 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:16:29 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:16:29 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:16:29 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:16:29 [debug]dhcp6_check_timer() called 2024-12-19 00:16:29 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:31 [debug]dhcp6_check_timer() called 2024-12-19 00:16:31 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:33 [debug]dhcp6_check_timer() called 2024-12-19 00:16:33 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:35 [debug]dhcp6_check_timer() called 2024-12-19 00:16:35 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:37 [debug]dhcp6_check_timer() called 2024-12-19 00:16:37 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:39 [debug]dhcp6_check_timer() called 2024-12-19 00:16:39 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:41 [debug]dhcp6_check_timer() called 2024-12-19 00:16:41 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:43 [debug]dhcp6_check_timer() called 2024-12-19 00:16:43 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:45 [debug]dhcp6_check_timer() called 2024-12-19 00:16:45 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:47 [debug]dhcp6_check_timer() called 2024-12-19 00:16:47 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:49 [debug]dhcp6_check_timer() called 2024-12-19 00:16:49 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:51 [debug]dhcp6_check_timer() called 2024-12-19 00:16:51 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:53 [debug]dhcp6_check_timer() called 2024-12-19 00:16:53 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:53 [debug]dhcp6_check_timer() called 2024-12-19 00:16:53 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:55 [debug]dhcp6_check_timer() called 2024-12-19 00:16:55 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:55 [debug]dhcp6_check_timer() called 2024-12-19 00:16:55 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:16:57 [debug]dhcp6_check_timer() called 2024-12-19 00:16:57 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:00 [debug]dhcp6_check_timer() called 2024-12-19 00:17:00 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:00 [debug]dhcp6_check_timer() called 2024-12-19 00:17:00 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:02 [debug]dhcp6_check_timer() called 2024-12-19 00:17:02 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:04 [debug]dhcp6_check_timer() called 2024-12-19 00:17:04 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:07 [info]dhcp6c_intf_changed() intf changed. caller=0x9273d0 2024-12-19 00:17:07 [debug]dhcp6_check_timer() called 2024-12-19 00:17:07 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:07 [info]client6_mainloop() cmdb msg received, sock =5 2024-12-19 00:17:07 [info]dhcp6c_intf_changed() intf changed. caller=0x23f9be8 2024-12-19 00:17:07 [debug]dhcp6_check_timer() called 2024-12-19 00:17:07 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:10 [debug]dhcp6_check_timer() called 2024-12-19 00:17:10 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:17:10 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:17:10 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:17:10 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:17:10 [debug]interface_has_changed() new dhcp6c options detected 2024-12-19 00:17:10 [debug]dhcp6c_resource_update() dhcp6client: detected changed interface, reinterfaceuring 2024-12-19 00:17:10 [warning]uncache_intf6_info() delete interface wan1 cache 2024-12-19 00:17:10 [debug]dhcp6c_intf_get_duid() called 2024-12-19 00:17:10 [debug]dhcp6c_intf_get_duid() Generated a new DUID: 00:03:00:01:04:d5:90:42:86:12. 2024-12-19 00:17:10 [debug]dhcp6_reset_timer() reset a timer on wan1, state=INIT, timeo=0, retrans=459 2024-12-19 00:17:10 [debug]dhcp6_check_timer() called 2024-12-19 00:17:10 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:12 [debug]dhcp6_check_timer() called 2024-12-19 00:17:12 [debug]dhcp6_check_timer() timer func=0x9274f0 2024-12-19 00:17:12 [debug]client6_send() a new XID (b4c06e) is generated 2024-12-19 00:17:12 [debug]copy_option() set client ID (len 10) 2024-12-19 00:17:12 [debug]copy_option() set elapsed time (len 2) 2024-12-19 00:17:12 [debug]copy_option() set option request (len 4) 2024-12-19 00:17:12 [debug]copyout_option() set IA_PD 2024-12-19 00:17:12 [debug]client6_send() send solicit to ff02::1:2%wan1 2024-12-19 00:17:12 [debug]dhcp6_reset_timer() reset a timer on wan1, state=SOLICIT, timeo=0, retrans=1046 2024-12-19 00:17:12 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:12 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:12 [debug]dhcp6_check_timer() called 2024-12-19 00:17:12 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:12 [info]client6_mainloop() msg received, sock =11 2024-12-19 00:17:12 [debug]client6_recv() receive advertise from fe80::7eff:4dff:fe93:9b5%wan1 on wan1 2024-12-19 00:17:12 [debug]dhcp6_get_options() get DHCP option client ID, len 10 2024-12-19 00:17:12 [debug] DUID: 00:03:00:01:04:d5:90:42:86:12 2024-12-19 00:17:12 [debug]dhcp6_get_options() get DHCP option server ID, len 10 2024-12-19 00:17:12 [debug] DUID: 00:03:00:01:7c:ff:4d:93:09:b5 2024-12-19 00:17:12 [debug]dhcp6_get_options() get DHCP option preference, len 1 2024-12-19 00:17:12 [debug] preference: 0 2024-12-19 00:17:12 [debug]dhcp6_get_options() get DHCP option DNS, len 16 2024-12-19 00:17:12 [debug]dhcp6_get_options() get DHCP option opt_86, len 16 2024-12-19 00:17:12 [info]dhcp6_get_options() unknown or unexpected DHCP6 option opt_86, len 16 2024-12-19 00:17:12 [debug]dhcp6_get_options() get DHCP option IA_PD, len 41 2024-12-19 00:17:12 [debug] IA_PD: ID=5, T1=1800, T2=2880 2024-12-19 00:17:12 [debug]copyin_option() get DHCP option IA_PD prefix, len 25 2024-12-19 00:17:12 [debug]copyin_option() IA_PD prefix: 2003:c6:af32:84fc::/62 pltime=3600 vltime=7200 2024-12-19 00:17:12 [debug]client6_recvadvert() server ID: 00:03:00:01:7c:ff:4d:93:09:b5, pref=0 2024-12-19 00:17:12 [debug]client6_recvadvert() reset timer for wan1 to 0.991872 2024-12-19 00:17:12 [debug]dhcp6_check_timer() called 2024-12-19 00:17:12 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:14 [info]dhcp6c_intf_changed() intf changed. caller=0x9273d0 2024-12-19 00:17:14 [debug]dhcp6_check_timer() called 2024-12-19 00:17:14 [debug]dhcp6_check_timer() timer func=0x9274f0 2024-12-19 00:17:14 [debug]select_server() picked a server (ID: 00:03:00:01:7c:ff:4d:93:09:b5) 2024-12-19 00:17:14 [debug]client6_send() a new XID (f583c6) is generated 2024-12-19 00:17:14 [debug]copy_option() set client ID (len 10) 2024-12-19 00:17:14 [debug]copy_option() set server ID (len 10) 2024-12-19 00:17:14 [debug]copy_option() set elapsed time (len 2) 2024-12-19 00:17:14 [debug]copy_option() set option request (len 4) 2024-12-19 00:17:14 [debug]copyout_option() set IA_PD prefix 2024-12-19 00:17:14 [debug]copyout_option() set IA_PD 2024-12-19 00:17:14 [debug]client6_send() send request to ff02::1:2%wan1 2024-12-19 00:17:14 [debug]dhcp6_reset_timer() reset a timer on wan1, state=REQUEST, timeo=0, retrans=949 2024-12-19 00:17:14 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:14 [info]client6_mainloop() cmdb msg received, sock =5 2024-12-19 00:17:14 [info]dhcp6c_intf_changed() intf changed. caller=0x23f9be8 2024-12-19 00:17:14 [debug]dhcp6_check_timer() called 2024-12-19 00:17:14 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:14 [info]client6_mainloop() msg received, sock =11 2024-12-19 00:17:14 [debug]client6_recv() receive reply from fe80::7eff:4dff:fe93:9b5%wan1 on wan1 2024-12-19 00:17:14 [debug]dhcp6_get_options() get DHCP option client ID, len 10 2024-12-19 00:17:14 [debug] DUID: 00:03:00:01:04:d5:90:42:86:12 2024-12-19 00:17:14 [debug]dhcp6_get_options() get DHCP option server ID, len 10 2024-12-19 00:17:14 [debug] DUID: 00:03:00:01:7c:ff:4d:93:09:b5 2024-12-19 00:17:14 [debug]dhcp6_get_options() get DHCP option preference, len 1 2024-12-19 00:17:14 [debug] preference: 0 2024-12-19 00:17:14 [debug]dhcp6_get_options() get DHCP option DNS, len 16 2024-12-19 00:17:14 [debug]dhcp6_get_options() get DHCP option opt_86, len 16 2024-12-19 00:17:14 [info]dhcp6_get_options() unknown or unexpected DHCP6 option opt_86, len 16 2024-12-19 00:17:14 [debug]dhcp6_get_options() get DHCP option IA_PD, len 41 2024-12-19 00:17:14 [debug] IA_PD: ID=5, T1=1800, T2=2880 2024-12-19 00:17:14 [debug]copyin_option() get DHCP option IA_PD prefix, len 25 2024-12-19 00:17:14 [debug]copyin_option() IA_PD prefix: 2003:c6:af32:84fc::/62 pltime=3600 vltime=7200 2024-12-19 00:17:14 [debug]info_printf() nameserver[0] 2620:fe::fe 2024-12-19 00:17:14 [debug]client6_process() dynamic dns1=[2620:fe::fe] 2024-12-19 00:17:14 [debug]get_ia() make an IA: PD-5 2024-12-19 00:17:14 [debug]update_prefix() create a prefix 2003:c6:af32:84fc::/62 pltime=3600, vltime=7200 2024-12-19 00:17:14 [debug]dhcp6c_ha_sync_send_lease_to() [dhcp6c_ha_sync_send_lease_to] serialno=' (null)', intf='wan1' 2024-12-19 00:17:14 [debug]dhcp6c_ha_sync_send_lease_to() send DHCP6_HA_SYNC_T_LEASE 2024-12-19 00:17:14 [debug]dhcp6_remove_event() removing an event on wan1, state=REQUEST 2024-12-19 00:17:14 [debug]dhcp6_remove_event() removing server (ID: 00:03:00:01:7c:ff:4d:93:09:b5) 2024-12-19 00:17:14 [debug]client6_recvreply() got an expected reply, sleeping. 2024-12-19 00:17:14 [debug]dhcp6_check_timer() called 2024-12-19 00:17:14 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:14 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:14 [info]client6_mainloop() cmdb msg received, sock =5 2024-12-19 00:17:14 [info]dhcp6c_intf_changed() intf changed. caller=0x23f9be8 2024-12-19 00:17:14 [debug]dhcp6_check_timer() called 2024-12-19 00:17:14 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:14 [info]client6_mainloop() cmdb msg received, sock =5 2024-12-19 00:17:14 [info]dhcp6c_intf_changed() intf changed. caller=0x23f9be8 2024-12-19 00:17:14 [debug]dhcp6_check_timer() called 2024-12-19 00:17:14 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:14 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:14 [debug]dhcp6_check_timer() called 2024-12-19 00:17:14 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:14 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:14 [info]dhcp6c_nlm_handler() Restart and renew interface wan1. 2024-12-19 00:17:14 [debug]remove_ia() remove an IA: PD-5 2024-12-19 00:17:14 [debug]remove_siteprefix() remove a site prefix 2003:c6:af32:84fc::/62 2024-12-19 00:17:14 [warning]uncache_intf6_info() delete interface wan1 cache 2024-12-19 00:17:14 [debug]dhcp6c_intf_get_duid() called 2024-12-19 00:17:14 [debug]dhcp6c_intf_get_duid() Generated a new DUID: 00:03:00:01:04:d5:90:42:86:12. 2024-12-19 00:17:14 [debug]dhcp6_reset_timer() reset a timer on wan1, state=INIT, timeo=0, retrans=601 2024-12-19 00:17:14 [info]dhcp6c_nlm_handler() Restart and renew interface wan1. 2024-12-19 00:17:14 [debug]dhcp6_remove_event() removing an event on wan1, state=INIT 2024-12-19 00:17:14 [warning]uncache_intf6_info() delete interface wan1 cache 2024-12-19 00:17:14 [debug]dhcp6c_intf_get_duid() called 2024-12-19 00:17:14 [debug]dhcp6c_intf_get_duid() Generated a new DUID: 00:03:00:01:04:d5:90:42:86:12. 2024-12-19 00:17:14 [debug]dhcp6_reset_timer() reset a timer on wan1, state=INIT, timeo=0, retrans=749 2024-12-19 00:17:14 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:17:14 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:17:14 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:17:14 [debug]dhcp6_check_timer() called 2024-12-19 00:17:14 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:14 [info]client6_mainloop() cmdb msg received, sock =5 2024-12-19 00:17:14 [info]dhcp6c_intf_changed() intf changed. caller=0x23f9be8 2024-12-19 00:17:14 [debug]dhcp6_check_timer() called 2024-12-19 00:17:14 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:16 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:16 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:17:16 [debug]dhcp6_check_timer() called 2024-12-19 00:17:16 [debug]dhcp6_check_timer() timer func=0x9274f0 2024-12-19 00:17:16 [debug]client6_send() a new XID (620a9f) is generated 2024-12-19 00:17:16 [debug]copy_option() set client ID (len 10) 2024-12-19 00:17:16 [debug]copyout_option() set identity association 2024-12-19 00:17:16 [debug]copy_option() set elapsed time (len 2) 2024-12-19 00:17:16 [debug]copy_option() set option request (len 4) 2024-12-19 00:17:16 [debug]copyout_option() set IA_PD 2024-12-19 00:17:16 [debug]client6_send() send solicit to ff02::1:2%wan1 2024-12-19 00:17:16 [debug]dhcp6_reset_timer() reset a timer on wan1, state=SOLICIT, timeo=0, retrans=1085 2024-12-19 00:17:16 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:16 [info]client6_mainloop() msg received, sock =11 2024-12-19 00:17:16 [debug]client6_recv() receive advertise from fe80::7eff:4dff:fe93:9b5%wan1 on wan1 2024-12-19 00:17:16 [debug]dhcp6_get_options() get DHCP option client ID, len 10 2024-12-19 00:17:16 [debug] DUID: 00:03:00:01:04:d5:90:42:86:12 2024-12-19 00:17:16 [debug]dhcp6_get_options() get DHCP option server ID, len 10 2024-12-19 00:17:16 [debug] DUID: 00:03:00:01:7c:ff:4d:93:09:b5 2024-12-19 00:17:16 [debug]dhcp6_get_options() get DHCP option preference, len 1 2024-12-19 00:17:16 [debug] preference: 0 2024-12-19 00:17:16 [debug]dhcp6_get_options() get DHCP option DNS, len 16 2024-12-19 00:17:16 [debug]dhcp6_get_options() get DHCP option opt_86, len 16 2024-12-19 00:17:16 [info]dhcp6_get_options() unknown or unexpected DHCP6 option opt_86, len 16 2024-12-19 00:17:16 [debug]dhcp6_get_options() get DHCP option identity association, len 40 2024-12-19 00:17:16 [debug] IA_NA: ID=5, T1=1800, T2=2880 2024-12-19 00:17:16 [debug]copyin_option() get DHCP option IA address, len 24 2024-12-19 00:17:16 [debug]copyin_option() IA_NA address: 2003:c6:af32:8400:6d5:90ff:fe42:8612 pltime=3600 vltime=7200 2024-12-19 00:17:16 [debug]dhcp6_get_options() get DHCP option IA_PD, len 41 2024-12-19 00:17:16 [debug] IA_PD: ID=5, T1=1800, T2=2880 2024-12-19 00:17:16 [debug]copyin_option() get DHCP option IA_PD prefix, len 25 2024-12-19 00:17:16 [debug]copyin_option() IA_PD prefix: 2003:c6:af32:84fc::/62 pltime=3600 vltime=7200 2024-12-19 00:17:16 [debug]client6_recvadvert() server ID: 00:03:00:01:7c:ff:4d:93:09:b5, pref=0 2024-12-19 00:17:16 [debug]client6_recvadvert() reset timer for wan1 to 0.988651 2024-12-19 00:17:16 [debug]dhcp6_check_timer() called 2024-12-19 00:17:16 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:19 [debug]dhcp6_check_timer() called 2024-12-19 00:17:19 [debug]dhcp6_check_timer() timer func=0x9274f0 2024-12-19 00:17:19 [debug]select_server() picked a server (ID: 00:03:00:01:7c:ff:4d:93:09:b5) 2024-12-19 00:17:19 [debug]client6_send() a new XID (ad2c8a) is generated 2024-12-19 00:17:19 [debug]copy_option() set client ID (len 10) 2024-12-19 00:17:19 [debug]copy_option() set server ID (len 10) 2024-12-19 00:17:19 [debug]copyout_option() set IA address 2024-12-19 00:17:19 [debug]copyout_option() set identity association 2024-12-19 00:17:19 [debug]copy_option() set elapsed time (len 2) 2024-12-19 00:17:19 [debug]copy_option() set option request (len 4) 2024-12-19 00:17:19 [debug]copyout_option() set IA_PD prefix 2024-12-19 00:17:19 [debug]copyout_option() set IA_PD 2024-12-19 00:17:19 [debug]client6_send() send request to ff02::1:2%wan1 2024-12-19 00:17:19 [debug]dhcp6_reset_timer() reset a timer on wan1, state=REQUEST, timeo=0, retrans=1022 2024-12-19 00:17:19 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:17:19 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:17:19 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:17:19 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:17:19 [debug]dhcp6_check_timer() called 2024-12-19 00:17:19 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:19 [info]client6_mainloop() msg received, sock =11 2024-12-19 00:17:19 [debug]client6_recv() receive reply from fe80::7eff:4dff:fe93:9b5%wan1 on wan1 2024-12-19 00:17:19 [debug]dhcp6_get_options() get DHCP option client ID, len 10 2024-12-19 00:17:19 [debug] DUID: 00:03:00:01:04:d5:90:42:86:12 2024-12-19 00:17:19 [debug]dhcp6_get_options() get DHCP option server ID, len 10 2024-12-19 00:17:19 [debug] DUID: 00:03:00:01:7c:ff:4d:93:09:b5 2024-12-19 00:17:19 [debug]dhcp6_get_options() get DHCP option preference, len 1 2024-12-19 00:17:19 [debug] preference: 0 2024-12-19 00:17:19 [debug]dhcp6_get_options() get DHCP option DNS, len 16 2024-12-19 00:17:19 [debug]dhcp6_get_options() get DHCP option opt_86, len 16 2024-12-19 00:17:19 [info]dhcp6_get_options() unknown or unexpected DHCP6 option opt_86, len 16 2024-12-19 00:17:19 [debug]dhcp6_get_options() get DHCP option identity association, len 40 2024-12-19 00:17:19 [debug] IA_NA: ID=5, T1=1800, T2=2880 2024-12-19 00:17:19 [debug]copyin_option() get DHCP option IA address, len 24 2024-12-19 00:17:19 [debug]copyin_option() IA_NA address: 2003:c6:af32:8400:6d5:90ff:fe42:8612 pltime=3600 vltime=7200 2024-12-19 00:17:19 [debug]dhcp6_get_options() get DHCP option IA_PD, len 41 2024-12-19 00:17:19 [debug] IA_PD: ID=5, T1=1800, T2=2880 2024-12-19 00:17:19 [debug]copyin_option() get DHCP option IA_PD prefix, len 25 2024-12-19 00:17:19 [debug]copyin_option() IA_PD prefix: 2003:c6:af32:84fc::/62 pltime=3600 vltime=7200 2024-12-19 00:17:19 [debug]info_printf() nameserver[0] 2620:fe::fe 2024-12-19 00:17:19 [debug]client6_process() dynamic dns1=[2620:fe::fe] 2024-12-19 00:17:19 [debug]get_ia() make an IA: PD-5 2024-12-19 00:17:19 [debug]update_prefix() create a prefix 2003:c6:af32:84fc::/62 pltime=3600, vltime=7200 2024-12-19 00:17:19 [debug]get_ia() make an IA: NA-5 2024-12-19 00:17:19 [debug]update_address() create an address 2003:c6:af32:8400:6d5:90ff:fe42:8612 pltime=3600, vltime=7200 2024-12-19 00:17:19 [debug]dhcp6c_ha_sync_send_lease_to() [dhcp6c_ha_sync_send_lease_to] serialno=' (null)', intf='wan1' 2024-12-19 00:17:19 [debug]dhcp6c_ha_sync_send_lease_to() send DHCP6_HA_SYNC_T_LEASE 2024-12-19 00:17:19 [debug]dhcp6_remove_event() removing an event on wan1, state=REQUEST 2024-12-19 00:17:19 [debug]dhcp6_remove_event() removing server (ID: 00:03:00:01:7c:ff:4d:93:09:b5) 2024-12-19 00:17:19 [debug]client6_recvreply() got an expected reply, sleeping. 2024-12-19 00:17:19 [debug]dhcp6_check_timer() called 2024-12-19 00:17:19 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:17:19 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:19 [info]client6_mainloop() cmdb msg received, sock =5 2024-12-19 00:17:19 [info]dhcp6c_intf_changed() intf changed. caller=0x23f9be8 2024-12-19 00:17:19 [debug]dhcp6_check_timer() called 2024-12-19 00:17:19 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:19 [info]client6_mainloop() cmdb msg received, sock =5 2024-12-19 00:17:19 [info]dhcp6c_intf_changed() intf changed. caller=0x23f9be8 2024-12-19 00:17:19 [debug]dhcp6_check_timer() called 2024-12-19 00:17:19 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:19 [info]client6_mainloop() cmdb msg received, sock =5 2024-12-19 00:17:19 [info]dhcp6c_intf_changed() intf changed. caller=0x23f9be8 2024-12-19 00:17:19 [debug]dhcp6_check_timer() called 2024-12-19 00:17:19 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:19 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:19 [debug]dhcp6_check_timer() called 2024-12-19 00:17:19 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:19 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:19 [debug]dhcp6_check_timer() called 2024-12-19 00:17:19 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:19 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:19 [debug]dhcp6_check_timer() called 2024-12-19 00:17:19 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:20 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:20 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:17:20 [debug]dhcp6_check_timer() called 2024-12-19 00:17:20 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:20 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:20 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:17:20 [debug]dhcp6_check_timer() called 2024-12-19 00:17:20 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:23 [debug]dhcp6_check_timer() called 2024-12-19 00:17:23 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:17:23 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:17:23 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:17:23 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:17:23 [debug]dhcp6_check_timer() called 2024-12-19 00:17:23 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:17:30 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:30 [debug]dhcp6_check_timer() called 2024-12-19 00:17:30 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:17:41 [debug]dhcp6_check_timer() called 2024-12-19 00:17:41 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:17:52 [debug]dhcp6_check_timer() called 2024-12-19 00:17:52 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:17:56 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:17:56 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:17:56 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:17:56 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:17:56 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:17:56 [debug]dhcp6_check_timer() called 2024-12-19 00:17:56 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:17:59 [debug]dhcp6_check_timer() called 2024-12-19 00:17:59 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:17:59 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:17:59 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:17:59 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:17:59 [debug]dhcp6_check_timer() called 2024-12-19 00:17:59 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:18:10 [debug]dhcp6_check_timer() called 2024-12-19 00:18:10 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:18:15 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:18:15 [debug]dhcp6_check_timer() called 2024-12-19 00:18:15 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:18:15 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:18:15 [debug]dhcp6_check_timer() called 2024-12-19 00:18:15 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:18:25 [debug]dhcp6_check_timer() called 2024-12-19 00:18:25 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:18:26 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:18:26 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:18:26 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:18:26 [debug]dhcp6_check_timer() called 2024-12-19 00:18:26 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:18:29 [debug]dhcp6_check_timer() called 2024-12-19 00:18:29 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:18:29 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:18:29 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:18:29 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:18:29 [debug]dhcp6_check_timer() called 2024-12-19 00:18:29 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:18:40 [debug]dhcp6_check_timer() called 2024-12-19 00:18:40 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:18:51 [debug]dhcp6_check_timer() called 2024-12-19 00:18:51 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:18:56 [info]dhcp6c_netlink_event_handler() netlink event is received. 2024-12-19 00:18:56 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:18:56 [info]dhcp6c_intf_changed() intf changed. caller=0x92be04 2024-12-19 00:18:56 [debug]dhcp6_check_timer() called 2024-12-19 00:18:56 [info]client6_mainloop() timeout=2 sec, cfd=5, kfd=6 2024-12-19 00:18:59 [debug]dhcp6_check_timer() called 2024-12-19 00:18:59 [debug]dhcp6_check_timer() timer func=0x926788 2024-12-19 00:18:59 [debug]dhcp6c_resource_update() dhcp6client: checking if we need to reinterfaceure 2024-12-19 00:18:59 [debug]dhcp6c_resource_update() modem is down 2024-12-19 00:18:59 [debug]interface_has_changed() intf wan1 vdom root HA status old:1 new:1 2024-12-19 00:18:59 [debug]dhcp6_check_timer() called 2024-12-19 00:18:59 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 2024-12-19 00:19:10 [debug]dhcp6_check_timer() called 2024-12-19 00:19:10 [info]client6_mainloop() timeout=10 sec, cfd=5, kfd=6 diagnose debug disable FortiGate-60F #
Finally, this Wireshark trace shows the client’s view. The FortiGate does not respond to router solicitations (RS, packets nr. 5, 12, 19), hence the real IPv6 process kicks in after it has received the first regular router advertisement (RA, nr. 43): [This trace was made while I had the O-flag still set to enable. Sorry for that.]
That’s it. Happy networking. ;)
Soli Deo Gloria!
Photo by Nick Fewings on Unsplash.