DHCP Broadcasts not seen by radiusd
Hermann.Lauer at uni-heidelberg.de
Hermann.Lauer at uni-heidelberg.de
Wed Jun 18 13:16:06 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.
...
> If you set 'broadcast = yes' in the configuration, it will accept broadcast packets.
Which is set, but seems not to show up in the -X debug output.
> That flag sets a socket option which tells the kernel to forward broadcast packets to FreeRADIUS.
Found my error:
ipv4addr = 0.0.0.0
or
ipaddr = 0.0.0.0
needs to be set to recieve non subnet broadcasts.
Thanks and greetings
Hermann
PS: "ss -f inet -a -e" helped to see this
--
Administration/Zentrale Dienste, Interdiziplinaeres
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Email: Hermann.Lauer at iwr.uni-heidelberg.de
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