Network Policy Server

Posted on 2011-05-03
Last Modified: 2012-05-11
I've configured my NPS as described in the article here:

My NPS server is not listening on 1812.  If I run a netstat -aon | find "LISTENING" I can see it isn't listening.  I can't telnet to localhost on 1812 and if I port scan from another host it shows that the port is not being listened on.  I have of course turned off the firewall and I have gone into the NPS configuration and left the default values of 1812 for authorization and 1812 for accounting.

Anyone have any ideas?  

I have Server 2008 R2 64bit fully updated with AD, Certificate Services for AD, DNS, and NPS roles installed.

Question by:LrdKanien
    LVL 38

    Accepted Solution

    The RADIUS server in Windows 2008 won't accept Telnet sessions. It also doesn't listen openly on 1812. It accepts RADIUS messages on 1812, but doesn't actively listen, so you won't see it in Netstat unless you check it right when a RADIUS transaction occurs. I get the same results for all your tests on my NPS server and it works just great with RADIUS for Wireless. The only way to make sure RADIUS is working is to tie in a RADIUS client and check the status of it in the RADIUS Servers and Clients section of NPS.
    LVL 9

    Expert Comment

    Does NPS work? Does client authenticate using NPS? you will not get telnet response from NPS. Please read NPS on technet for info.


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