Hi Yu. Thank you for the reply. Kea is a vm on hypervisor, there is one additional vm for testing - it acts like a dhcp client. Rest of the network are physical computers. They are in the same network - no vlans etc. For v4 we can say they all use 192.168.0.0/24, for v6 there is one prefix for all of them as well.
The old ISC dhcp server was the vm on the same hypervisor with the same IP4/6 addresses assigned. Jan > 19. 8. 2024 v 13:30, Xiao, Yu (CCI-Atlanta) <yu.x...@cox.com>: > > Hi Jan, > > “As I said, Kea and rest of the computers/clients are in the same network.”, > are they on different VMs of the same hypervisor? If so, you may need to have > a Virtual Router and then you will need to advertise the network using the > vRouter, thus the clients know the routes to the V6 server. > > > > Best Regards, > Yu > > > From: Kea-users <kea-users-boun...@lists.isc.org > <mailto:kea-users-boun...@lists.isc.org>> on behalf of Jan Jurko via > Kea-users <kea-users@lists.isc.org <mailto:kea-users@lists.isc.org>> > Date: Sunday, August 18, 2024 at 7:03 AM > To: Kea user's list <kea-users@lists.isc.org <mailto:kea-users@lists.isc.org>> > Cc: Jan Jurko <j...@jurko.cz <mailto:j...@jurko.cz>> > Subject: [EXTERNAL] Re: [Kea-users] Kea dhcp6 clients do not get IPs > > 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 > > <mailto: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 <mailto: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. 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