Hi Darren.
Here are some tcpdump logs gathered during ipconfig /renew6 on windows machine.
16:28:45.345877 IP6 (flowlabel 0x50bc8, hlim 1, next-header UDP (17) payload
length: 103) fe80::54a0:da31:647a:debc.546 > ff02::1:2.547: [udp sum ok] dhcp6
solicit (xid=109009 (elapsed-time 0) (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (IA_NA IAID:106058752 T1:0 T2:0) (Client-FQDN)
(vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list
Client-FQDN))
16:28:45.347124 IP6 (flowlabel 0x51d47, hlim 64, next-header UDP (17) payload
length: 138) fe80::5054:ff:fefb:f887.547 > fe80::54a0:da31:647a:debc.546: [udp
sum ok] dhcp6 advertise (xid=109009 (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (server-ID hwaddr/time type 1 time 777238119
525400fbf887) (IA_NA IAID:106058752 T1:0 T2:0 (status-code NoAddrsAvail))
(Client-FQDN))
16:28:46.336578 IP6 (flowlabel 0x080d2, hlim 1, next-header UDP (17) payload
length: 103) fe80::54a0:da31:647a:debc.546 > ff02::1:2.547: [udp sum ok] dhcp6
solicit (xid=109009 (elapsed-time 0) (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (IA_NA IAID:106058752 T1:0 T2:0) (Client-FQDN)
(vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list
Client-FQDN))
16:28:46.337552 IP6 (flowlabel 0x51d47, hlim 64, next-header UDP (17) payload
length: 138) fe80::5054:ff:fefb:f887.547 > fe80::54a0:da31:647a:debc.546: [udp
sum ok] dhcp6 advertise (xid=109009 (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (server-ID hwaddr/time type 1 time 777238119
525400fbf887) (IA_NA IAID:106058752 T1:0 T2:0 (status-code NoAddrsAvail))
(Client-FQDN))
16:28:46.338244 IP6 (flowlabel 0x080d2, hlim 1, next-header UDP (17) payload
length: 103) fe80::54a0:da31:647a:debc.546 > ff02::1:2.547: [udp sum ok] dhcp6
solicit (xid=109009 (elapsed-time 0) (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (IA_NA IAID:106058752 T1:0 T2:0) (Client-FQDN)
(vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list
Client-FQDN))
16:28:46.338882 IP6 (flowlabel 0x51d47, hlim 64, next-header UDP (17) payload
length: 138) fe80::5054:ff:fefb:f887.547 > fe80::54a0:da31:647a:debc.546: [udp
sum ok] dhcp6 advertise (xid=109009 (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (server-ID hwaddr/time type 1 time 777238119
525400fbf887) (IA_NA IAID:106058752 T1:0 T2:0 (status-code NoAddrsAvail))
(Client-FQDN))
16:28:46.345023 IP6 (flowlabel 0x080d2, hlim 1, next-header UDP (17) payload
length: 103) fe80::54a0:da31:647a:debc.546 > ff02::1:2.547: [udp sum ok] dhcp6
solicit (xid=109009 (elapsed-time 0) (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (IA_NA IAID:106058752 T1:0 T2:0) (Client-FQDN)
(vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list
Client-FQDN))
16:28:46.346179 IP6 (flowlabel 0x51d47, hlim 64, next-header UDP (17) payload
length: 138) fe80::5054:ff:fefb:f887.547 > fe80::54a0:da31:647a:debc.546: [udp
sum ok] dhcp6 advertise (xid=109009 (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (server-ID hwaddr/time type 1 time 777238119
525400fbf887) (IA_NA IAID:106058752 T1:0 T2:0 (status-code NoAddrsAvail))
(Client-FQDN))
16:28:46.346691 IP6 (flowlabel 0x080d2, hlim 1, next-header UDP (17) payload
length: 103) fe80::54a0:da31:647a:debc.546 > ff02::1:2.547: [udp sum ok] dhcp6
solicit (xid=109009 (elapsed-time 0) (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (IA_NA IAID:106058752 T1:0 T2:0) (Client-FQDN)
(vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list
Client-FQDN))
16:28:46.347208 IP6 (flowlabel 0x51d47, hlim 64, next-header UDP (17) payload
length: 138) fe80::5054:ff:fefb:f887.547 > fe80::54a0:da31:647a:debc.546: [udp
sum ok] dhcp6 advertise (xid=109009 (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (server-ID hwaddr/time type 1 time 777238119
525400fbf887) (IA_NA IAID:106058752 T1:0 T2:0 (status-code NoAddrsAvail))
(Client-FQDN))
16:28:46.347629 IP6 (flowlabel 0x080d2, hlim 1, next-header UDP (17) payload
length: 103) fe80::54a0:da31:647a:debc.546 > ff02::1:2.547: [udp sum ok] dhcp6
solicit (xid=109009 (elapsed-time 0) (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (IA_NA IAID:106058752 T1:0 T2:0) (Client-FQDN)
(vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list
Client-FQDN))
16:28:46.348078 IP6 (flowlabel 0x51d47, hlim 64, next-header UDP (17) payload
length: 138) fe80::5054:ff:fefb:f887.547 > fe80::54a0:da31:647a:debc.546: [udp
sum ok] dhcp6 advertise (xid=109009 (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (server-ID hwaddr/time type 1 time 777238119
525400fbf887) (IA_NA IAID:106058752 T1:0 T2:0 (status-code NoAddrsAvail))
(Client-FQDN))
16:28:46.348483 IP6 (flowlabel 0x080d2, hlim 1, next-header UDP (17) payload
length: 103) fe80::54a0:da31:647a:debc.546 > ff02::1:2.547: [udp sum ok] dhcp6
solicit (xid=109009 (elapsed-time 0) (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (IA_NA IAID:106058752 T1:0 T2:0) (Client-FQDN)
(vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list
Client-FQDN))
16:28:46.348923 IP6 (flowlabel 0x51d47, hlim 64, next-header UDP (17) payload
length: 138) fe80::5054:ff:fefb:f887.547 > fe80::54a0:da31:647a:debc.546: [udp
sum ok] dhcp6 advertise (xid=109009 (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (server-ID hwaddr/time type 1 time 777238119
525400fbf887) (IA_NA IAID:106058752 T1:0 T2:0 (status-code NoAddrsAvail))
(Client-FQDN))
16:28:46.349395 IP6 (flowlabel 0x080d2, hlim 1, next-header UDP (17) payload
length: 103) fe80::54a0:da31:647a:debc.546 > ff02::1:2.547: [udp sum ok] dhcp6
solicit (xid=109009 (elapsed-time 0) (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (IA_NA IAID:106058752 T1:0 T2:0) (Client-FQDN)
(vendor-class) (option-request vendor-specific-info DNS-server DNS-search-list
Client-FQDN))
16:28:46.349856 IP6 (flowlabel 0x51d47, hlim 64, next-header UDP (17) payload
length: 138) fe80::5054:ff:fefb:f887.547 > fe80::54a0:da31:647a:debc.546: [udp
sum ok] dhcp6 advertise (xid=109009 (client-ID hwaddr/time type 1 time
777170736 525400f4c2d7) (server-ID hwaddr/time type 1 time 777238119
525400fbf887) (IA_NA IAID:106058752 T1:0 T2:0 (status-code NoAddrsAvail))
(Client-FQDN))
Jan
> 18. 8. 2024 v 23:55, Darren Ankney <darren.ank...@gmail.com>:
>
> Hi Jan,
>
> "Message is invalid and it is discarded." this is the reason. Though
> I could not begin to speculate why the client is discarding the
> message. Most likely there is some incorrect information or missing
> information (some option was requested but was not sent). Wireshark
> can help here. Use tcpdump to dump the packets: tcpdump -w dump.pcap
> port 547. Open the file in Wireshark. See what was requested in the
> Solicit vs what was sent in the Advertise.
>
> Thank you,
> Darren Ankney
>
> On Sun, Aug 18, 2024 at 7:03 AM Jan Jurko via Kea-users
> <kea-users@lists.isc.org> wrote:
>>
>> Hello Darren.
>> Thank you for your reply.
>>
>> Kea and client are both on the same hypervizor, other clients are on the
>> same network in the building so there should not be a problem with some fw
>> etc.
>>
>> I’ve enabled windows logs for dhcp and here they are:
>>
>> 1.
>> Information
>> Solicit is sent from the interface 4. Status code is 0x0
>>
>> 2.
>> Error
>> Message is invalid and it is discarded.
>>
>> 3.
>> Error
>> Your computer was not assigned an address from the network (by the DHCP
>> server) for the Network Card with network address XXXX. The following error
>> occured: 0x138E. Your computer will continue to try and obtain an address on
>> its own from the network address (DHCP) server.
>>
>>
>> There is no firewall on the clients.
>>
>> As I said, Kea and rest of the computers/clients are in the same network.
>>
>> I’ve tried to create the small configuration - no reservations, only pool of
>> addresses - the same bad result.
>>
>> Thank you very much for your help.
>>
>> Jan
>>
>>
>>> 18. 8. 2024 v 12:36, Darren Ankney <darren.ank...@gmail.com>:
>>>
>>> Hi Jan,
>>>
>>> From the log messages you have shown, it appears that Kea is
>>> attempting to advertise some address to a client with DUID:
>>> 00:01:00:01:2e:52:af:30:52:54:00:f4:c2:d7 The client should next
>>> request this address but that isn't shown in your logs. The client
>>> must not like something about the advertisement or is not receiving
>>> the advertisement. It would be difficult to help without more
>>> information. Is this traffic relayed or do the client and server
>>> exist on the same physical network? Have you looked in the client
>>> logs (if exist) to see what it thinks is happening? You might try
>>> adding a small pool to the subnet to see what happens (i.e., does the
>>> client get an address, though I doubt that would be the case).
>>>
>>> Thank you,
>>> Darren Ankney
>>>
>>> On Sun, Aug 18, 2024 at 5:03 AM Jan Jurko via Kea-users
>>> <kea-users@lists.isc.org> wrote:
>>>>
>>>> Good day.
>>>> I have Kea 2.6.1 installed. I use v4 and v6 dhcp server. V4 works fine but
>>>> v6 does not give clients IPv6 addresses. The setup is:
>>>>
>>>> HW router with ipv6 enabled, RA enabled, M flag present. I do not use O
>>>> flag because in the dualstack dns servers are on v4 addresses. So I just
>>>> want to distribute ipv6 addresses from dhcp server to clients. I use
>>>> hw-address to distribute addresses but I tried DUID as well.
>>>>
>>>> I can see in the Kea logs this output:
>>>>
>>>> 2024-08-18 10:44:32.959 INFO [kea-dhcp6.dhcp6/3542.140690709083840]
>>>> DHCP6_QUERY_LABEL received query:
>>>> duid=[00:01:00:01:2e:52:af:30:52:54:00:f4:c2:d7], [no hwaddr info],
>>>> tid=0xbea948
>>>> 2024-08-18 10:44:32.959 INFO [kea-dhcp6.packets/3542.140690709083840]
>>>> DHCP6_PACKET_RECEIVED duid=[00:01:00:01:2e:52:af:30:52:54:00:f4:c2:d7],
>>>> [no hwaddr info], tid=0xbea948: SOLICIT (type 1) received from
>>>> fe80::54a0:da31:647a:debc to ff02::1:2 on interface ens3
>>>> 2024-08-18 10:44:32.959 INFO [kea-dhcp6.packets/3542.140690709083840]
>>>> DHCP6_PACKET_SEND duid=[00:01:00:01:2e:52:af:30:52:54:00:f4:c2:d7], [no
>>>> hwaddr info], tid=0xbea948: trying to send packet ADVERTISE (type 2) from
>>>> [ff02::1:2]:547 to [fe80::54a0:da31:647a:debc]:546 on interface ens3
>>>> 2024-08-18 10:44:33.957 INFO [kea-dhcp6.dhcp6/3542.140690717476544]
>>>> DHCP6_QUERY_LABEL received query:
>>>> duid=[00:01:00:01:2e:52:af:30:52:54:00:f4:c2:d7], [no hwaddr info],
>>>> tid=0xbea948
>>>> 2024-08-18 10:44:33.958 INFO [kea-dhcp6.packets/3542.140690717476544]
>>>> DHCP6_PACKET_RECEIVED duid=[00:01:00:01:2e:52:af:30:52:54:00:f4:c2:d7],
>>>> [no hwaddr info], tid=0xbea948: SOLICIT (type 1) received from
>>>> fe80::54a0:da31:647a:debc to ff02::1:2 on interface ens3
>>>> 2024-08-18 10:44:33.958 INFO [kea-dhcp6.packets/3542.140690717476544]
>>>> DHCP6_PACKET_SEND duid=[00:01:00:01:2e:52:af:30:52:54:00:f4:c2:d7], [no
>>>> hwaddr info], tid=0xbea948: trying to send packet ADVERTISE (type 2) from
>>>> [ff02::1:2]:547 to [fe80::54a0:da31:647a:debc]:546 on interface ens3
>>>> 2024-08-18 10:44:33.959 INFO [kea-dhcp6.dhcp6/3542.140690709083840]
>>>> DHCP6_QUERY_LABEL received query:
>>>> duid=[00:01:00:01:2e:52:af:30:52:54:00:f4:c2:d7], [no hwaddr info],
>>>> tid=0xbea948
>>>> 2024-08-18 10:44:33.959 INFO [kea-dhcp6.packets/3542.140690709083840]
>>>> DHCP6_PACKET_RECEIVED duid=[00:01:00:01:2e:52:af:30:52:54:00:f4:c2:d7],
>>>> [no hwaddr info], tid=0xbea948: SOLICIT (type 1) received from
>>>> fe80::54a0:da31:647a:debc to ff02::1:2 on interface ens3
>>>> 2024-08-18 10:44:33.960 INFO [kea-dhcp6.packets/3542.140690709083840]
>>>> DHCP6_PACKET_SEND duid=[00:01:00:01:2e:52:af:30:52:54:00:f4:c2:d7], [no
>>>> hwaddr info], tid=0xbea948: trying to send packet ADVERTISE (type 2) from
>>>> [ff02::1:2]:547 to [fe80::54a0:da31:647a:de
>>>>
>>>>
>>>> I’ve used the old ISC dhcp server but I want to migrace to Kea because the
>>>> old ISC dhcp server is obsolette.
>>>>
>>>> Configuration file looks like this (it is truncated because there are more
>>>> than 200 records):
>>>>
>>>>
>>>>
>>>> {
>>>> # /etc/dhcpd6.conf
>>>> #
>>>> # Sample DHCPv6 configuration file for ISC dhcpd
>>>> #
>>>> # *** PLEASE CONFIGURE IT FIRST ***
>>>> #
>>>> # Don't forget to set the DHCPD6_INTERFACE in the
>>>> # /etc/sysconfig/dhcpd file.
>>>> #
>>>> /// This configuration declares some subnets but has no interfaces-config
>>>> /// Reference Kea #245
>>>> "Dhcp6": {
>>>> "control-socket": {
>>>> "socket-type": "unix",
>>>> "socket-name": "/tmp/kea6-ctrl-socket"
>>>> },
>>>> "mac-sources": [
>>>> "any"
>>>> ],
>>>> "loggers": [
>>>> {
>>>> "name": "kea-dhcp6",
>>>> "severity": "DEBUG",
>>>> "output_options": [
>>>> {
>>>> "output": "/var/log/kea/dhcp6.log",
>>>> "maxver": 10
>>>> }
>>>> ]
>>>> },
>>>> {
>>>> "name": "kea-dhcp6.dhcpsrv",
>>>> "severity": "DEBUG",
>>>> "output_options": [
>>>> {
>>>> "output": "/var/log/kea/dhcp6-dhcpsrv.log",
>>>> "maxver": 10
>>>> }
>>>> ]
>>>> },
>>>> {
>>>> "name": "kea-dhcp6.leases",
>>>> "severity": "DEBUG",
>>>> "output_options": [
>>>> {
>>>> "output": "/var/log/kea/dhcp6-leases.log",
>>>> "maxver": 10
>>>> }
>>>> ]
>>>> }
>>>> ],
>>>> "interfaces-config": {
>>>> "interfaces": [ "ens3" ]
>>>> },
>>>> "subnet6": [
>>>> {
>>>> "id": 1,
>>>> "subnet": „2001:XXX:XXX:0::/64",
>>>> "reservations": [
>>>> {
>>>> "hostname": „XXX",
>>>> "hw-address": "08:8f:c3:f5:ab:49",
>>>> "ip-addresses": [
>>>> „2001:XXX:XXX:0:192:168:1:75"
>>>> ]
>>>> },
>>>> {
>>>> "hostname": „AAAAA",
>>>> "hw-address": "08:97:98:d7:c5:d0",
>>>> "ip-addresses": [
>>>> „2001:XXX:XXX:0:192:168:0:169"
>>>> ]
>>>> }
>>>> ]
>>>> }
>>>> ]
>>>> }
>>>> }
>>>>
>>>> Thank you for your help. I’ve spent more than 10 hours debugging this
>>>> problem, but still no luck.
>>>>
>>>> Jan
>>>> --
>>>> ISC funds the development of this software with paid support
>>>> subscriptions. Contact us at https://www.isc.org/contact/ for more
>>>> information.
>>>>
>>>> To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users.
>>>>
>>>> Kea-users mailing list
>>>> Kea-users@lists.isc.org
>>>> https://lists.isc.org/mailman/listinfo/kea-users
>>> --
>>> ISC funds the development of this software with paid support subscriptions.
>>> Contact us at https://www.isc.org/contact/ for more information.
>>>
>>> To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users.
>>>
>>> Kea-users mailing list
>>> Kea-users@lists.isc.org
>>> https://lists.isc.org/mailman/listinfo/kea-users
>>
>> --
>> ISC funds the development of this software with paid support subscriptions.
>> Contact us at https://www.isc.org/contact/ for more information.
>>
>> To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users.
>>
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>> Kea-users@lists.isc.org
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> --
> ISC funds the development of this software with paid support subscriptions.
> Contact us at https://www.isc.org/contact/ for more information.
>
> To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users.
>
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