Chapter 1

Pop quiz – RADIUS knowledge

1. A NAS device is a Network Access Server which controls access to the network and its resources.
2. A session starts directly after successful authentication and ends when the connection is terminated.
3. RADIUS uses UDP protocol. Port 1812 is used for authentication and port 1813 for accounting.
4. A shared secret.
5. An Access-Request packet
6. A Disconnect-Request packet is initiated by the RADIUS server and received by the RADIUS client.
7. The type, length, and value.
8. The name of the realm is freeradius.org.