Cisco Systems 4.2 Configuring Session Management, Configuring a Resource Manager, 5-16, Object

Chapter 5 Customizing Your Configuration

Configuring Session Management

Configuring Session Management

You can use session management to track user sessions, and/or allocate dynamic resources to users for the lifetime of their sessions. You can define one or more Session Managers, and have each one manage the sessions for a particular group or company.

Configuring a Resource Manager

Session Managers use Resource Managers, which in turn manage a pool of resources of a particular type. The Resource Managers have the following types:

•IP-Dynamic—manages a pool of IP address and allows you to dynamically allocate IP addresses from that pool of addresses

•IP-Per-NAS-Port—allows you to associate NAS ports to specific IP addresses, and thus ensure specific NAS ports always get the same IP address

•IPX-Dynamic—manages a pool of IPX network addresses

•Group-Session-Limit—manages concurrent sessions for a group of users; that is, it keeps track of how many sessions are active and denies new sessions after the configured limit has been reached

•User-Session-Limit—manages per-user concurrent sessions; that is, it keeps track of how many sessions each user has, and denies the user a new session after the configured limit has been reached

•USR-VPN—allows you to set up a Virtual Private Network (VPN) using a US Robotics NAS. (A Virtual Private Network is a way for companies to use the Internet to securely transport private data.)

•IP address pool—allows you to manage pool of dynamic IP addresses

•On-Demand Address Pool—allows you to manage pool of IP dynamic subnet address

•Session Cache—allows you to cache additional attributes to existing session

Each Resource Manager is responsible for examining the request and deciding whether to allocate a resource for the user, pass the request through, or cause Cisco AR to reject the request.

Table 5-6provides an overview of the process. The following sections describe the process in more detail.

Table 5-6 Configuring ResourceManagers

Object	Action
ResourceManagers	Add new ResourceManager
	Set type (Group-Session-Limit)
	Set value (100)
SessionManagers	Add new SessionManager
	Set ResourceManager
Radius	Set DefaultSessionManager

Creating a Resource Manager

You can use the default Resource Managers as models for any new Resource Managers you want to create. The following describes how to create a Resource Manager that limits the number of users to 100 or less at any one time.

	Installing and Configuring Cisco Access Registrar, 4.2
5-16	OL-17221-02