The CMDB Solution task Update Network Resource Location can be used to automatically set computer Locations based on the computer's subnet. This article describes how to do this.
 

1. Before beginning to configure the task, ensure computers have IP addresses reported from basic inventory. If computers do not have IP or subnet information, they are not reporting in to the server. The Update Network Resource Location task will not work with computers with no IP address. Any that do not will need to be resolved before they can be included with this task.
2. Configure the Subnets:
   
   a. In the Symantec Management Platform Console, click on the Manage button > Assets.
   b. Click on to expand the folders Manage Configuration Items > Other Assets.
   c. Click on Subnet.
   d. There are no out of box subnets. Create or edit subnets as necessary or consider importing these in using the Microsoft Active Directory Import (Core), Network Discovery (Inventory Solution) or Data Connector Import Rule functions (Data Connector Solution).
    
3. Configure the Locations:
   
   a. In the Symantec Management Platform Console, click on the Manage button > Assets.
   b. Click on to expand the folder Organizational Type.
   c. Click on Location.
   d. There are no out of box locations. Create or edit locations as necessary. Ensure that their Location to Subnet is filled out for related subnets as configured in step 2. Note: Locations can be automatically imported. The following article describes how to do this:
   
   How to automate the assignment of departments and locations to users and computers
   http://www.symantec.com/business/support/index?page=content&id=HOWTO64252
    
4. Configure and run the Update Network Resource Location task:
   
   a. In the Symantec Management Platform Console, click on the Manage button > Jobs and Tasks.
   b. Click on to expand the folders System Jobs and Tasks > Service and Asset Management > CMDB.
   c. Click on Update Network Resource Location.
   d. Click on the "Select filters" link to set the "Include filter". Note: Ensure that the filter contains the computers to be used.
   e. If a schedule is to be used, click on the New Schedule button to configure it. Note: If this is at least not set to Run Now, the task will not run until it is manually done so or is scheduled.
   f. Click on the "Save changes" button.
    

Related Article

How to create a CMDB rule that will assign Locations to computers
http://www.symantec.com/business/support/index?page=content&id=HOWTO10037