neither of those configs are valid. Looks like ChatGPT made up some
things there. See:
https://kea.readthedocs.io/en/kea-2.2.0/arm/hooks.html#ha-high-availability-outage-resilience-for-kea-servers
Take a look at hot-standby as that is the easiest mode to configure and operate.
On Mon, Mar 6, 2023 at 12:35 AM Kraishak Mahtha <kraishak....@gmail.com> wrote:
>
> Hi All,
> I have recently started exploring kea-dhcp4, while I am checking for the
> kea-dhcp failover on chatGPT, It says that failover and HA are two different
> mechanisms for the kea and here is the sample example for kea-failover config
> as it provides
> # Sample config for failover
> ================
> {
> "Dhcp4": {
> "control-socket": {
> "socket-type": "unix",
> "socket-name": "/tmp/kea-dhcp4-ctrl.sock"
> },
> "lease-database": {
> "type": "memfile",
> "lfc-interval": 3600
> },
> "expired-leases-processing": {
> "reclaim-timer-wait-time": 10,
> "flush-reclaimed-timer-wait-time": 25,
> "hold-reclaimed-time": 3600,
> "max-reclaim-leases": 100,
> "max-reclaim-time": 250,
> "unwarned-reclaim-cycles": 10,
> "warned-reclaim-cycles": 20
> },
> "subnet4": [
> {
> "id": 1,
> "subnet": "192.0.2.0/24",
> "pools": [
> {
> "pool": "192.0.2.100 - 192.0.2.200"
> }
> ],
> "option-data": [
> {
> "name": "routers",
> "data": "192.0.2.1"
> }
> ]
> }
> ],
> "hosts-database": {
> "type": "memfile",
> "persist": true,
> "name": "hosts.json"
> },
> "dhcp-ddns": {
> "enable-updates": true,
> "qualifying-suffix": "example.com",
> "reverse-ddns": true,
> "hostname-char-set": "[a-zA-Z0-9.-]"
> },
> "valid-lifetime": 300,
> "renew-timer": 150,
> "rebind-timer": 225,
> "interfaces-config": {
> "interfaces": ["eth0"]
> },
> "dhcp-disable": false,
> "option-def": [
> {
> "name": "domain-name-servers",
> "code": 6,
> "type": "ipv4-address",
> "array": true
> }
> ],
> "option-data": [
> {
> "name": "domain-name-servers",
> "data": "192.0.2.2, 192.0.2.3"
> }
> ],
> "failover": {
> "name": "dhcp-failover",
> "mode": "hot-standby",
> "peer-address": "192.0.2.101",
> "peer-port": 519,
> "max-response-delay": 60,
> "max-unacked-clients": 10000,
> "load-balance-max-percent": 50,
> "load-balance-max-secs": 3600,
> "auto-partner-down": true,
> "decline-time": 60,
> "down-time": 300,
> "startup-delay": 10,
> "trust-local-time": true,
> "heartbeat-interval": 10,
> "connect-timeout": 2
> }
> }
> }
> #sample example of HA
> ===================
> {
> "Dhcp4": {
> "valid-lifetime": 3600,
> "renew-timer": 600,
> "rebind-timer": 1200,
> "subnet4": [
> {
> "subnet": "192.168.0.0/24",
> "pools": [
> {
> "pool": "192.168.0.100 - 192.168.0.200"
> }
> ],
> "option-data": [
> {
> "name": "domain-name-servers",
> "data": "8.8.8.8, 8.8.4.4"
> },
> {
> "name": "domain-name",
> "data": "example.com"
> }
> ],
> "reservations": [
> {
> "hw-address": "00:11:22:33:44:55",
> "ip-address": "192.168.0.10",
> "hostname": "host1.example.com"
> }
> ]
> }
> ],
> "interfaces-config": {
> "interfaces": ["eth0", "eth1"]
> },
> "ha": {
> "mode": "hot-standby",
> "ip-address": "192.168.0.2",
> "shared-secret": "my-secret",
> "peer-address": "192.168.0.3"
> }
> }
> }
>
> But when I search for the same in the official kea-doc. I don't see any such
> reference to failover directive or a key-word. Not sure if it is not
> supported from 2.2.0 version and later or I missed any other docs. Just
> curious to know if we really have such a difference, and if any one is
> familiar with this can you please share the reference for it.
>
> Thanks in Advance
> Kraishak
>
> --
> 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
