Building a test tool
aland at deployingradius.com
Fri Jun 5 02:06:29 CEST 2009
Vinit Karandikar wrote:
>> So... run 10 copies of radclient.
> That requires a separate manual setup for each of 50 test cases which is
> bound to be error prone.
Which gets into the issue of defining your requirements. This message
defines your requirements a bit better than "how do I send RADIUS packets"
> So if I could run 10 copies of radclient in one process (each in a
> different thread for example), I can write code to co-ordinate what each
> thread should do for each test case.
The server comes with a RADIUS API. You can use the API to create an
application that sends and receives RADIUS packets.
> Some of them receive RADIUS packets and send responses (acting as
> servers). Others initiate the traffic (acting as clients).
> Can radclient act as a server ?
No. But the "radiusd" server can.
> Hope this illustrates the functionality I mentioned as desired in my
> original email.
> In BOTH cases, the AAA server is expected to forward RADIUS requests to
> a different network element and it behooves a test application to see
> both ends.
What you're describing is a RADIUS simulator for a specific test
environment. That doesn't exist. It is a *very* custom piece of software.
FreeRADIUS can do a lot of this, but you will still need to write all
of the custom rules for processing, timing, etc.
> In Case 1, the AAA server proxies the Disconnect Request to a different
> network element based on the location of the subscriber.
FreeRADIUS can do this, with some configuration effort.
> In Case 2, the AAA server proxies the Access Requests from different
> network elements to another network element
FreeRADIUS can do this, too.
> The point once again is just to ask if
> a) there is already a tool that can simulate multiple network elements
> and co-ordinate between them to know when to expect a packet and when to
> initiate traffic
... for your specific environment, and your specific test cases.
The answer to that is "no".
> b) there is re-usable software that I can beat into shape to do such a
FreeRADIUS. It can proxy packets. It's a RADIUS server, after all.
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