I want to eventually configure the SG300 to authenticate wired clients with 802.1x and Microsoft NPS (RADIUS). I am currently testing this setup using a single port (Port 7) on my SG300, a test machine, and an AD based Network Policy Server.
The problem I have is that when I change the Administrative Port Control for Port 7 to Force Authorized, I see this log entry:
Informational %SEC-I-PORTAUTHORIZED: Port gi7 is Authorized
And then when I change the port control to Auto the port immediately changes to Unauthorized and I see this log entry:
Warning %SEC-W-PORTUNAUTHORIZED: Port gi7 is unAuthorized
However I never see any RADIUS messages being sent from the SG300 to my RADIUS server or from the SG300 to the test machine plugged into port 7. I am using WireShark on my RADIUS server to watch for messages from the SG300 IP Address and I'm using WireShark on a second test machine that is configured to monitor the NIC card in the test machine plugged into port 7 (I'm using Hyper-V and its facilities for this NIC monitoring setup.)
Here is my configuration:
Switch - 10.1.1.3
RADIUS (Microsoft NPS)- 10.1.1.15
Switch Usage Type - All (Login and 802.1x)
Port 7 configuration:
VLAN Mode is General
Host Authentication is Single Host Authentication
Administrative Port Control is Auto
RADIUS VLAN Assignment is Disabled
Guest VLAN is Enabled
802.1x Based Authentication is Enable d
Additional Configurations under Security - 802.1x/MAC/Web Authentication:
Port Based Authentication is Enabled
Authentication Method is RADIUS
Guest VLAN is Enabled
Guest VLAN ID is 2
All of my VLANs are enabled for Authentication
One last note:
The SG300 uses the same RADIUS server for management console access and it works without problem. When I log into the switch, WireShark shows the RADIUS messages from the switch to the RADIUS server and back. So I know RADIUS is configured correctly on the switch.
