Dr. COM is an authentication and charging management system commonly used in education, telecom, radio, and television industries and governments. The IAG can work with Dr. COM to authenticate users regardless of whether Dr. COM uses the B/S or C/S authentication mode. Before accessing the Internet, a user must be authenticated by Dr. COM. When the user logs in to or logs out of Dr. COM, the user is also logged in or out on the IAG. See the following figure.

The data flow is as follows:

1. A PC logs in to or out of the Dr. COM authentication server.

2. The Dr. COM authentication server notifies the IAG of user login or logout to implement SSO. The procedure is as follows:

Step 1.Set the authentication policy. Navigate to Access Mgt > Authentication > Web Authentication > Authentication Policy and click Add to set the authentication policy according to the IP or MAC addresses of the users who require SSO.

Step 2.Choose Access Mgt > Authentication > Web Authentication > Single Sign On SSO > Third-Party Server and perform configuration. Select City hotspot and set its IP address. See the following figure.

Step 3.Configure City hotspot. For details, contact its vendor.