[Kea-users] NameChangeRequest has unexpected change type

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[Kea-users] NameChangeRequest has unexpected change type

Stsl
hi,

I upgraded from 1.4.0 to 1.6.2 and faced an issue with NCR in dhcp4.
I make a request to get a lease. I receive it, but then I get NCR with
unexpected change type - it has CHG_REMOVE instead of CHG_ADD. Based on the
logs Kea renews the lease that has expired. The issue seems to appear only
in this case and only after upgrading.

The only change that has an effect on this issue is providing different
hostname option for every lease request.

Here is the config I am using:
{
   "Dhcp4":{
      "control-socket":{
         "socket-type":"unix",
         "socket-name":"/tmp/kea-dhcp4-ctrl.sock"
      },
      "dhcp4o6-port":0,
      "dhcp-ddns":{
         "always-include-fqdn":false,
         "enable-updates":true,
         "generated-prefix":"",
         "max-queue-size":1024,
         "ncr-format":"JSON",
         "ncr-protocol":"UDP",
         "override-client-update":false,
         "override-no-update":false,
         "qualifying-suffix":"",
         "replace-client-name":"when-not-present",
         "sender-ip":"127.0.0.1",
         "sender-port":5301,
         "server-ip":"127.0.0.1",
         "server-port":5300
      },
      "decline-probation-period":86400,
      "echo-client-id":true,
      "expired-leases-processing":{
         "flush-reclaimed-timer-wait-time":25,
         "hold-reclaimed-time":3600,
         "max-reclaim-leases":100,
         "max-reclaim-time":250,
         "reclaim-timer-wait-time":10,
         "unwarned-reclaim-cycles":5
      },
      "hooks-libraries":[
         {
            "library":"/usr/local/lib/kea/hooks/libdhcp_lease_cmds.so"
         },
         {
            "library":"/usr/local/lib/kea/hooks/libdhcp_stat_cmds.so"
         },
         {
            "library":"/usr/local/lib/kea/hooks/lease_reporter.so"
         }
      ],
      "host-reservation-identifiers":[
         "hw-address",
         "duid",
         "circuit-id",
         "client-id"
      ],
      "interfaces-config":{
         "interfaces":[
            "*"
         ],
         "re-detect":true
      },
      "lease-database":{
         "type":"memfile",
         "lfc-interval":3600
      },
      "option-data":[
         {
            "name":"keya",
            "code":221,
            "space":"dhcp4",
            "csv-format":true,
            "data":"500",
            "always-send":true
         },
         {
            "name":"keyb",
            "code":222,
            "space":"dhcp4",
            "csv-format":true,
            "data":"4294967289",
            "always-send":true
         }
      ],
      "option-def":[
         {
            "name":"keya",
            "code":221,
            "type":"uint16",
            "space":"dhcp4"
         },
         {
            "name":"keyb",
            "code":222,
            "type":"uint32",
            "space":"dhcp4"
         }
      ],
      "rebind-timer":0,
      "renew-timer":0,
      "valid-lifetime":180,
      "user-context":{

      },
      "match-client-id":true,
      "next-server":"0.0.0.0",
      "subnet4":[
         {
            "id":1,
            "match-client-id":true,
            "pools":[
               {
                  "pool":"172.18.11.1/32"
               },
               {
                  "pool":"172.18.11.3-172.18.11.254"
               }
            ],
            "rebind-timer":0,
            "renew-timer":0,
            "relay":{

            },
            "reservation-mode":"all",
            "subnet":"172.18.11.0/24",
            "valid-lifetime":180
         }
      ],
      "loggers":[
         {
            "name":"kea-dhcp4",
            "severity":"INFO",
            "debuglevel":0,
            "output_options":[
               {
                  "output":"stdout"
               }
            ]
         }
      ]
   }
}

And here is the part of the logs:
 2020-05-25 13:50:19.064 DEBUG [kea-dhcp4.packets/11346]
DHCP4_BUFFER_RECEIVED received buffer from 0.0.0.0:68 to 255.255.255.255:67
over interface eth0
 2020-05-25 13:50:19.064 DEBUG [kea-dhcp4.options/11346] DHCP4_BUFFER_UNPACK
parsing buffer received from 0.0.0.0 to 255.255.255.255 over interface eth0
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_CFGMGR_SUBNET4_ADDR selected subnet 172.18.11.0/24 for packet
received by matching address 172.18.11.7
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.packets/11346]
DHCP4_SUBNET_SELECTED [hwtype=1 00:00:5e:e1:9f:26], cid=[no info],
tid=0x9713e: the subnet with ID 1 was selected for client assignments
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.packets/11346] DHCP4_SUBNET_DATA
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: the selected
subnet details: 172.18.11.0/24
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.packets/11346]
DHCP4_PACKET_RECEIVED [hwtype=1 00:00:5e:e1:9f:26], cid=[no info],
tid=0x9713e: DHCPDISCOVER (type 1) received from 0.0.0.0 to 255.255.255.255
on interface eth0
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.packets/11346] DHCP4_QUERY_DATA
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e, packet details:
local_address=255.255.255.255:67, remote_address=0.0.0.0:68,
msg_type=DHCPDISCOVER (1), transid=0x9713e,
 options:
   type=053, len=001: 1 (uint8)
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_CFGMGR_SUBNET4_ADDR selected subnet 172.18.11.0/24 for packet
received by matching address 172.18.11.7
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.packets/11346]
DHCP4_SUBNET_SELECTED [hwtype=1 00:00:5e:e1:9f:26], cid=[no info],
tid=0x9713e: the subnet with ID 1 was selected for client assignments
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.packets/11346] DHCP4_SUBNET_DATA
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: the selected
subnet details: 172.18.11.0/24
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_IDENTIFIER get one host with IPv4 reservation
for subnet id 1, identified by hwaddr=00005EE19F26
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_IDENTIFIER get all hosts with reservations using
identifier: hwaddr=00005EE19F26
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_IDENTIFIER_COUNT using identifier hwaddr=00005EE19F26,
found 0 host(s)
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_IDENTIFIER_NULL host not found using subnet id 1
and identifier hwaddr=00005EE19F26
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.dhcp4/11346] DHCP4_CLASS_ASSIGNED
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: client packet has
been assigned to the following class(es): UNKNOWN
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.dhcp4/11346] DHCP4_CLASS_ASSIGNED
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: client packet has
been assigned to the following class(es): ALL, UNKNOWN
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.ddns/11346]
DHCP4_CLIENT_HOSTNAME_PROCESS [hwtype=1 00:00:5e:e1:9f:26], cid=[no info],
tid=0x9713e: processing client's Hostname option
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.ddns/11346] DHCP4_GENERATE_FQDN
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: client did not
send a FQDN or hostname; FQDN will be be generated for the client
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_MEMFILE_GET_HWADDR obtaining IPv4 leases for hardware address
hwtype=1 00:00:5e:e1:9f:26
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.alloc-engine/11346]
ALLOC_ENGINE_V4_OFFER_NEW_LEASE allocation engine will try to offer new
lease to the client [hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS4 get one host with reservation for
subnet id 1 and IPv4 address 172.18.11.1
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_ADDRESS4 get all hosts with reservations for IPv4 address
172.18.11.1
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_ADDRESS4_COUNT using address 172.18.11.1, found 0 host(s)
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS4_NULL host not found using subnet id 1
and address 172.18.11.1
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_MEMFILE_GET_ADDR4 obtaining IPv4 lease for address 172.18.11.1
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS4 get one host with reservation for
subnet id 1 and IPv4 address 172.18.11.2
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_ADDRESS4 get all hosts with reservations for IPv4 address
172.18.11.2
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_ADDRESS4_COUNT using address 172.18.11.2, found 0 host(s)
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS4_NULL host not found using subnet id 1
and address 172.18.11.2
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_MEMFILE_GET_ADDR4 obtaining IPv4 lease for address 172.18.11.2
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS4 get one host with reservation for
subnet id 1 and IPv4 address 172.18.11.3
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_ADDRESS4 get all hosts with reservations for IPv4 address
172.18.11.3
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_ADDRESS4_COUNT using address 172.18.11.3, found 0 host(s)
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS4_NULL host not found using subnet id 1
and address 172.18.11.3
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_MEMFILE_GET_ADDR4 obtaining IPv4 lease for address 172.18.11.3
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.alloc-engine/11346]
ALLOC_ENGINE_V4_REUSE_EXPIRED_LEASE_DATA [hwtype=1 00:00:5e:e1:9f:26],
cid=[no info], tid=0x9713e: reusing expired lease, updated lease
information: Address:       172.18.11.3
 Valid life:    180
 Cltt:          1590414619
 Hardware addr: 00:00:5e:e1:9f:26
 Client id:     (none)
 Subnet ID:     1
 State:         default
 
 2020-05-25 13:50:19.065 INFO  [kea-dhcp4.leases/11346] DHCP4_LEASE_ADVERT
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: lease 172.18.11.3
will be advertised
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.ddns/11346]
DHCP4_RESPONSE_HOSTNAME_GENERATE [hwtype=1 00:00:5e:e1:9f:26], cid=[no
info], tid=0x9713e: server has generated hostname foo-172-18-11-3.com for
the client
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.options/11346] DHCP4_PACKET_PACK
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: preparing on-wire
format of the packet to be sent
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.packets/11346] DHCP4_PACKET_SEND
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: trying to send
packet DHCPOFFER (type 2) from 172.18.11.7:67 to 172.18.11.3:68 on interface
eth0
 2020-05-25 13:50:19.065 DEBUG [kea-dhcp4.packets/11346] DHCP4_RESPONSE_DATA
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: responding with
packet DHCPOFFER (type 2), packet details: local_address=172.18.11.7:67,
remote_address=172.18.11.3:68, msg_type=DHCPOFFER (2), transid=0x9713e,
 options:
   type=001, len=004: 4294967040 (uint32)
   type=012, len=019: "foo-172-18-11-3.com" (string)
   type=051, len=004: 180 (uint32)
   type=053, len=001: 2 (uint8)
   type=054, len=004: 172.18.11.7
   type=240, len=016: "testtextForScope" (string)
 2020-05-25 13:50:19.112 DEBUG [kea-dhcp4.packets/11346]
DHCP4_BUFFER_RECEIVED received buffer from 0.0.0.0:68 to 255.255.255.255:67
over interface eth0
 2020-05-25 13:50:19.112 DEBUG [kea-dhcp4.options/11346] DHCP4_BUFFER_UNPACK
parsing buffer received from 0.0.0.0 to 255.255.255.255 over interface eth0
 2020-05-25 13:50:19.112 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_CFGMGR_SUBNET4_ADDR selected subnet 172.18.11.0/24 for packet
received by matching address 172.18.11.7
 2020-05-25 13:50:19.112 DEBUG [kea-dhcp4.packets/11346]
DHCP4_SUBNET_SELECTED [hwtype=1 00:00:5e:e1:9f:26], cid=[no info],
tid=0x9713e: the subnet with ID 1 was selected for client assignments
 2020-05-25 13:50:19.112 DEBUG [kea-dhcp4.packets/11346] DHCP4_SUBNET_DATA
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: the selected
subnet details: 172.18.11.0/24
 2020-05-25 13:50:19.112 DEBUG [kea-dhcp4.packets/11346]
DHCP4_PACKET_RECEIVED [hwtype=1 00:00:5e:e1:9f:26], cid=[no info],
tid=0x9713e: DHCPREQUEST (type 3) received from 0.0.0.0 to 255.255.255.255
on interface eth0
 2020-05-25 13:50:19.112 DEBUG [kea-dhcp4.packets/11346] DHCP4_QUERY_DATA
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e, packet details:
local_address=255.255.255.255:67, remote_address=0.0.0.0:68,
msg_type=DHCPREQUEST (3), transid=0x9713e,
 options:
   type=012, len=019: "foo-172-18-11-3.com" (string)
   type=050, len=004: 172.18.11.3 (ipv4-address)
   type=053, len=001: 3 (uint8)
   type=054, len=004: 172.18.11.7 (ipv4-address)
 2020-05-25 13:50:19.112 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_CFGMGR_SUBNET4_ADDR selected subnet 172.18.11.0/24 for packet
received by matching address 172.18.11.7
 2020-05-25 13:50:19.112 DEBUG [kea-dhcp4.packets/11346]
DHCP4_SUBNET_SELECTED [hwtype=1 00:00:5e:e1:9f:26], cid=[no info],
tid=0x9713e: the subnet with ID 1 was selected for client assignments
 2020-05-25 13:50:19.112 DEBUG [kea-dhcp4.packets/11346] DHCP4_SUBNET_DATA
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: the selected
subnet details: 172.18.11.0/24
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_IDENTIFIER get one host with IPv4 reservation
for subnet id 1, identified by hwaddr=00005EE19F26
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_IDENTIFIER get all hosts with reservations using
identifier: hwaddr=00005EE19F26
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_IDENTIFIER_COUNT using identifier hwaddr=00005EE19F26,
found 0 host(s)
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_IDENTIFIER_NULL host not found using subnet id 1
and identifier hwaddr=00005EE19F26
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.dhcp4/11346] DHCP4_CLASS_ASSIGNED
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: client packet has
been assigned to the following class(es): UNKNOWN
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.dhcp4/11346] DHCP4_CLASS_ASSIGNED
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: client packet has
been assigned to the following class(es): ALL, UNKNOWN
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.ddns/11346]
DHCP4_CLIENT_HOSTNAME_PROCESS [hwtype=1 00:00:5e:e1:9f:26], cid=[no info],
tid=0x9713e: processing client's Hostname option
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.ddns/11346]
DHCP4_CLIENT_HOSTNAME_DATA [hwtype=1 00:00:5e:e1:9f:26], cid=[no info],
tid=0x9713e: client sent Hostname option: foo-172-18-11-3.com
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.ddns/11346]
DHCP4_CLIENT_HOSTNAME_DATA [hwtype=1 00:00:5e:e1:9f:26], cid=[no info],
tid=0x9713e: client sent Hostname option: foo-172-18-11-3.com
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.ddns/11346]
DHCP4_RESPONSE_HOSTNAME_DATA [hwtype=1 00:00:5e:e1:9f:26], cid=[no info],
tid=0x9713e: including Hostname option in the server's response:
foo-172-18-11-3.com
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_MEMFILE_GET_HWADDR obtaining IPv4 leases for hardware address
hwtype=1 00:00:5e:e1:9f:26
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS4 get one host with reservation for
subnet id 1 and IPv4 address 172.18.11.3
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_ADDRESS4 get all hosts with reservations for IPv4 address
172.18.11.3
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ALL_ADDRESS4_COUNT using address 172.18.11.3, found 0 host(s)
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.hosts/11346]
HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS4_NULL host not found using subnet id 1
and address 172.18.11.3
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_MEMFILE_GET_ADDR4 obtaining IPv4 lease for address 172.18.11.3
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.alloc-engine/11346]
ALLOC_ENGINE_V4_REQUEST_ALLOC_REQUESTED [hwtype=1 00:00:5e:e1:9f:26],
cid=[no info], tid=0x9713e: trying to allocate requested address 172.18.11.3
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_MEMFILE_GET_ADDR4 obtaining IPv4 lease for address 172.18.11.3
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.alloc-engine/11346]
ALLOC_ENGINE_V4_LEASE_RECLAIM [hwtype=1 00:00:5e:df:7f:04], cid=[no info]:
reclaiming expired lease for address 172.18.11.3
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.dhcpsrv/11346] DHCPSRV_QUEUE_NCR
[hwtype=1 00:00:5e:df:7f:04], cid=[no info]: name change request to remove
DNS entry queued: Type: 1 (CHG_REMOVE)
 Forward Change: yes
 Reverse Change: yes
 FQDN: [foo-172-18-11-3.com.]
 IP Address: [172.18.11.3]
 DHCID:
[0000012364B9BAB75449540DB4462B2913CAFB476AE0033B0138208B7D78C3D20628E4]
 Lease Expires On: 20200525135008
 Lease Length: 180
 
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.alloc-engine/11346]
ALLOC_ENGINE_V4_REUSE_EXPIRED_LEASE_DATA [hwtype=1 00:00:5e:e1:9f:26],
cid=[no info], tid=0x9713e: reusing expired lease, updated lease
information: Address:       172.18.11.3
 Valid life:    180
 Cltt:          1590414619
 Hardware addr: 00:00:5e:e1:9f:26
 Client id:     (none)
 Subnet ID:     1
 State:         default
 
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_MEMFILE_UPDATE_ADDR4 updating IPv4 lease for address 172.18.11.3
 caller=level.go:63 msg="Recv lease to report"
 2020-05-25 13:50:19.113 INFO  [kea-dhcp4.leases/11346] DHCP4_LEASE_ALLOC
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: lease 172.18.11.3
has been allocated for 180 seconds
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.ddns/11346] DHCP4_NCR_CREATE
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: DDNS updates
enabled, therefore sending name change requests
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.options/11346] DHCP4_PACKET_PACK
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: preparing on-wire
format of the packet to be sent
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.packets/11346] DHCP4_PACKET_SEND
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: trying to send
packet DHCPACK (type 5) from 172.18.11.7:67 to 255.255.255.255:68 on
interface eth0
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.packets/11346] DHCP4_RESPONSE_DATA
[hwtype=1 00:00:5e:e1:9f:26], cid=[no info], tid=0x9713e: responding with
packet DHCPACK (type 5), packet details: local_address=172.18.11.7:67,
remote_address=255.255.255.255:68, msg_type=DHCPACK (5), transid=0x9713e,
 options:
   type=001, len=004: 4294967040 (uint32)
   type=012, len=019: "foo-172-18-11-3.com" (string)
   type=051, len=004: 180 (uint32)
   type=053, len=001: 5 (uint8)
   type=054, len=004: 172.18.11.7
   type=240, len=016: "testtextForScope" (string)
 2020-05-25 13:50:19.113 DEBUG [kea-dhcp4.dhcpsrv/11346]
DHCPSRV_DHCP_DDNS_NCR_SENT NameChangeRequest sent to kea-dhcp-ddns: Type: 1
(CHG_REMOVE)
 Forward Change: yes
 Reverse Change: yes
 FQDN: [foo-172-18-11-3.com.]
 IP Address: [172.18.11.3]
 DHCID:
[0000012364B9BAB75449540DB4462B2913CAFB476AE0033B0138208B7D78C3D20628E4]
 Lease Expires On: 20200525135008
 Lease Length: 180



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