HA scenario: some devices keep sending DHCP requests
name: Bug report
about: Some clients keep sending DHCP requests in a HA setup, in single server setup they don't
Describe the bug Two clients in my network keep sending DHCP requests when using 2 kea dhcp4-servers in a HA setup. This results in those 2 clients not being connected. When running 1 kea dhcp4-server (without HA configuration) the two clients work perfectly fine.
To Reproduce Steps to reproduce the behavior:
- Start kea dhcp4-server and control agent on 2 hosts (1 Debian bullseye; 1 Odroid C4) in Docker containers using this compose filedocker-compose.yml and configuration files ctrl-agent.json, dhcp4_HA.json
- The server starts fine, heartbeats work fine, most of the clients are working as expected.
- Two clients (same manufacturer) keep sending DHCP requests. The result seem that those 2 clients are unable to connect to the network. For example the devices with MAC address 1c:ca:e3:7a:60:8c in this log: kea-dhcp4_logs_6.txt. Log file does not seem to throw any relevant errors.
Expected behavior Two clients should be able to connect even in HA setup.
Environment:
- Kea version: 2.4.0
- OS: Docker images on 1) Debian Bullseye host and 2) Odroid C4 with Armbian 23.02.2 Bullseye
Additional Information Configuration files are attached above, but always available to provide more information.
Contacting you How can ISC reach you to discuss this matter further? Via e-mail: h37dcmrr@duck.com