how many clients use TCP Radius

Florin Andrei florin at
Wed May 4 02:45:13 CEST 2016

What clients actually use Radius over TCP? I can't find anything out 
there that's widely deployed and can query a Radius server over TCP. 
E.g. the Cisco documentation for routers, etc. seems to indicate that 
they only do UDP.

The reason why I'm asking - I'm looking into setting up authentication 
for a variety of clients, with Radius used as a transport protocol, and 
I'm wondering if it's worth the trouble to even think about enabling 
TCP, or promising I could offer TCP.


Florin Andrei

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