right, the connectivity parameters were missing.
"dhcp-ddns": {
"enable-updates": true
},
was sufficient in this case - everything else was left on default.
Thanks.
On 17/05/2021 11.49, Peter Davies wrote:
Hi There,
To get ddns working you need to do three things:
1 Configure Connectivity Parameters
2 Configure Behavioral Parameters
see 8.2.18 DDNS for DHCPv4
https://kea.readthedocs.io/en/kea-1.8.2/arm/dhcp4-srv.html#ddns-for-dhcpv4
3. Configure the kea-dhcp-ddns, daemon
see
https://kea.readthedocs.io/en/kea-1.8.2/arm/ddns.html#the-dhcp-ddns-server
<https://kea.readthedocs.io/en/kea-1.8.2/arm/ddns.html#the-dhcp-ddns-server>
Looking at your config snippet you have no connectivity parameters?
The Kea ARM contains the following example:
"Dhcp4": {
"dhcp-ddns": {
// Connectivity parameters
"enable-updates": false,
"server-ip": "127.0.0.1",
"server-port":53001,
"sender-ip":"",
"sender-port":0,
"max-queue-size":1024,
"ncr-protocol":"UDP",
"ncr-format":"JSON"
},
// Behavioral parameters (global)
"ddns-send-updates": true,
"ddns-override-no-update": false,
"ddns-override-client-update": false,
"ddns-replace-client-name": "never",
"ddns-generated-prefix": "myhost",
"ddns-qualifying-suffix": "",
"ddns-update-on-renew": false,
"ddns-use-conflict-resolution": true,
"hostname-char-set": "",
"hostname-char-replacement": ""
...
}
Kind Regards Peter
Sent from Outlook <http://aka.ms/weboutlook>
------------------------------------------------------------------------
*From:* Kea-users <[email protected]> on behalf of M.
<[email protected]>
*Sent:* 16 May 2021 13:10
*To:* [email protected] <[email protected]>
*Subject:* [Kea-users] DDNS remains off - DDNS: disabled
Hi there!
do I need something else to enable DDNS? The log shows "DDNS: disabled".
"ddns-send-updates" have to be used -
https://readthedocs.org/projects/kea/downloads/pdf/latest/
<https://readthedocs.org/projects/kea/downloads/pdf/latest/> table 8 p.
138 lists "ddns-send-update" (without "s") - using the version w/o "s"
results in complaints in the log. Is this a feature?
----------------------------
kea-dhcp4.conf:
{
"Dhcp4": {
"interfaces-config": {
"interfaces": [ "enp1s0" ],
"dhcp-socket-type": "raw"
},
"control-socket": {
"socket-type": "unix",
"socket-name": "/tmp/kea-dhcp4-ctrl.sock"
},
"lease-database": {
"lfc-interval": 3600,
"name": "/var/lib/kea/kea-leases4.csv",
"persist": true,
"type": "memfile"
},
"ddns-send-updates": true,
"ddns-override-no-update": true,
"ddns-override-client-update": true,
"hostname-char-set": "[^A-Za-z0-9-]",
"hostname-char-replacement": "x",
...
----------------------------
2021-05-16 12:34:54.783 INFO [kea-dhcp4.commands/3730.140310172542400]
COMMAND_ACCEPTOR_START Starting to accept connections via unix domain
socket bound to /tmp/kea-dhcp4-ctrl.sock
2021-05-16 12:34:54.783 INFO [kea-dhcp4.dhcp4/3730.140310172542400]
DHCP4_CONFIG_COMPLETE DHCPv4 server has completed configuration: added
IPv4 subnets: 4; DDNS: disabled
2021-05-16 12:34:54.784 INFO [kea-dhcp4.dhcpsrv/3730.140310172542400]
DHCPSRV_MEMFILE_DB opening memory file lease database: lfc-interval=3600
name=/var/lib/kea/kea-leases4.csv persist=true type=memfile universe=4
2021-05-16 12:34:54.784 INFO [kea-dhcp4.dhcpsrv/3730.140310172542400]
DHCPSRV_MEMFILE_LEASE_FILE_LOAD loading leases from file
/var/lib/kea/kea-leases4.csv
2021-05-16 12:34:54.785 INFO [kea-dhcp4.dhcpsrv/3730.140310172542400]
DHCPSRV_MEMFILE_LFC_SETUP setting up the Lease File Cleanup interval to
3600 sec
2021-05-16 12:34:54.786 WARN [kea-dhcp4.dhcp4/3730.140310172542400]
DHCP4_MULTI_THREADING_INFO enabled: no, number of threads: 0, queue
size: 0
2021-05-16 12:34:54.787 INFO [kea-dhcp4.dhcp4/3730.140310172542400]
DHCP4_STARTED Kea DHCPv4 server version 1.9.4 started
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_______________________________________________
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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
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https://lists.isc.org/mailman/listinfo/kea-users
