Freeradius not receiving packets

liran kessel lirankessel at
Thu Apr 18 13:47:55 CEST 2019


I have a new environment of FreeRadius (3.0.13) installed on a VM with 3 ethernet cards.
Accounting packets are being sent to the server and I can see them in both tcpdump and when running radsniff (as seen bellow).

radsniff -I eth2

2019-04-18 14:18:46.362465 (1) Accounting-Request Id 240 eth2:YYY.YYY.YYY.YYY:60978 -> XXX.XXX.XXX.XXX:1813 +0.000
2019-04-18 14:18:51.562465 (1) * norsp * Accounting-Request Id 240 eth2:YYY.YYY.YYY.YYY:60978 -> XXX.XXX.XXX.XXX:1813

The server is listening on the port 
[root at vrl-cdm-rdius-s raddb]# netstat -an | grep 1813
udp        0      0*
udp6       0      0 :::1813                 :::*

Nothing is written to the DB and/or to the Radius server that I have run in -X 

I am thinking it might be something to do with the fact that this is a VM and maybe packets aren’t forwarded from the Kernel to the socket that the Freeradius has opened.
However I wanted to ask if radsniff listens like tcpdump or to the actual socket? 
If it is listening to the socket than I guess I have a problem in the server configuration rather than the Kernel.


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