[Kea-users] kea dhcp4 not responding to requests

[Brendan Kearney]

On 8/20/24 12:00 PM, Matt Aiken via Kea-users wrote:
> In the past I've ran `journalctl -f -u isc-kea-dhcp4` and set the logging level in the kea-dhcp4.conf file to DEBUG.
>
> If you run `ss -nulp` does it show the interface that would be receiving those DHDP discovers from the relay listening on port 67?
>
> -----Original Message-----
> From: Kea-users <kea-users-bounces at lists.isc.org> On Behalf Of Brendan Kearney
> Sent: Monday, August 19, 2024 7:11 PM
> To: Kea user's list <kea-users at lists.isc.org>
> Subject: [Kea-users] kea dhcp4 not responding to requests
>
> [EXTERNAL EMAIL]
>
> list members,
>
> i am working to convert from dhcpd to kea, and have the configs i think i want, but in testing, the kea-dhcp4 instances are not responding to relayed requests.  i have dhcp-socket-ype set to UDP, so relayed packets should be responded to, as well as declaring the relay/ip-address in the subnet definition.  i can see the relay send the dhcp packets, and the hosts running kea-dhcp4 see the incoming packets, but there is no indication that kea is accepting the packet, much less responding to them. tcpdump shows no response and running kea-dhcp4 in the foreground does not show anything past the startup of the listener.  it seems i have some odd config that is preventing kea from acknowledging the incoming request.
>
> i can post the config json, the debug output or whatever else is needed, but how do i find out why the listener is started but not accepting incoming requests?
>
> thanks in advance,
>
> brendan kearney
>
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thanks, matt.  i needed to adjust the loggers config, so that my logs 
went to stdout when debugging.  the boxes are listening on port 67, and 
tuning the loggers showed the traffic.  now i am on to why things bomb 
out when i try to cutover all dhcp traffic to kea.

brendan