Question/Issue:
While installing Symantec Endpoint Protection Manager, you see the following message: "Port 1812 is already in use. Stop your Radius server if you have the Enforcer installed."

Cause:
The Symantec Endpoint Protection Manager uses Radius communication and requires port 1812 to be available for the Enforcer (see References below). If a Radius Server is already installed it may be using the same port. Other installed software may also be using this port.


Solution:
To solve the problem, either change the port the Endpoint Protection Manager uses, change the port that the existing Radius server (or other third-party software) uses, or install the Symantec Endpoint Protection Manager on a different computer on which port 1812 is not in use.

To change the port the Endpoint Protection Manager uses

1. Navigate to C:\Program Files\Symantec\Symantec Endpoint Protection Manager\tomcat\etc\.
2. Open the conf.properties file.
3. Add a line at the bottom that reads:
   
   scm.radius.port=xxxx
   
   where xxxx is the desired port number.
4. Press Enter in order to leave a blank line at the end of the conf.properties file.
5. Save and close the conf.properties file
6. Restart the IIS Admin Service
   1. Click Start > Run
   2. Type services.msc and click OK
   3. Right-click on IIS Admin Service and click Restart
7. Click Start > All Programs > Symantec Endpoint Protection Manager > Management Server Configuration Wizard and complete the wizard.

References:
Which communication ports does the Symantec Endpoint Protection Manager 11.x use?

The following Cisco document explains how RADIUS works:
How Does RADIUS Work?
Document ID: 12433
http://www.cisco.com/en/US/tech/tk59/technologies_tech_note09186a00800945cc.shtml


This document is available in the following languages:

• Brazilian-Portuguese: http://service1.symantec.com/SUPPORT/INTER/ent-securityintl.nsf/br_docid/20080314145711935
• French: http://service1.symantec.com/SUPPORT/INTER/ent-securityintl.nsf/fr_docid/20080318100330935
• German: http://service1.symantec.com/SUPPORT/INTER/ent-securityintl.nsf/de_docid/20080318104607935
• Italian: http://service1.symantec.com/SUPPORT/INTER/ent-securityintl.nsf/it_docid/20080318111134935
• Spanish: http://service1.symantec.com/SUPPORT/INTER/ent-securityintl.nsf/es_docid/20080317112928935

Document ID: 2007111411152348
Last Modified: 11/10/2009
Date Created: 11/14/2007
Operating System(s): Windows 2000 Professional, Windows 2000 Server/Advanced Server, Windows XP Professional Edition, Windows Server 2003 Web/Standard/Enterprise/Datacenter Edition
Product(s): Endpoint Protection 11
Release(s): Endpoint Protection 11 [All Releases]