Common Terminology Across Security Realms

Security Server

The remote host with which the access server communicates in order to request authentication clearance during the login process. Each security method (other than user accounts) defines one or more host processors that can support the authentication procedure.

RADIUS Accounting

The RADIUS security method supports logging of accounting information. The accounting information is sent to what is called the accounting host by means of the accounting service port.

UDP Ports

Each security method has a well-known port (or two) that must be specified to the access server in order for the UDP connection to be established. When you create a new realm, it is not usable until you define a secret (and at least one authentication host) for it. However, the realm will be created with default values (the well-known ports) for the UDP ports.

Managing Access Server Security 22-5