DHCP Broadcasts not seen by radiusd

Tue Jun 17 13:20:10 UTC 2025

On Jun 17, 2025, at 7:40 AM, Hermann.Lauer at uni-heidelberg.de wrote:
> freeradius is not seeing DHCP broadcast discover messages on the same
> subnet. Wireshark shows the broadcasts arriving, so for
> some reasons the packets seems not being transmitted from the kernel
> to the radius server level.

  If you set 'broadcast = yes' in the configuration, it will accept broadcast packets.

  That flag sets a socket option which tells the kernel to forward broadcast packets to FreeRADIUS.

  Alan DeKok.