Gateway missing with Kea Default Gateway

pfnewb2016

FWIW: Ran into a problem today, 6100 running 26.03.1. Using Kea DHCP server, with the gateway at the "default", the gateway is missing when the client obtains a lease. This happened with 2 different clients: Unifi switch and Lenovo laptop. This happened on 2 different VLANs/2 different scopes. I have not seen this happen before.

Kea Gateway Default = The gateway is the IP of the interface by default, but the IP is not explicitly typed into the gateway field. The default IP was visible and correct.

The solution was to manually type the same pfSense interface IP into the gateway field.

pfsense-->SFP+-->10gbs SM fiber-->SFP+-->UnifiProMax24

Gertjan

@pfnewb2016

Ask pfSense to show you what the DHCP request from the client was, and the answer from the DHCP server (kea) :

Seleclt the right interface,
Full details
UDP, as DHCP is UDP,
Ports 67 and 68.
And hit start.

Now, go to your Unifi device, unhook the network cable for a moment and hook it back up.
The answers = the packet captures, are shown on the screen.
Did the device ask for a gateway ? And if so, did pfSense (kea) gave one ?