5-1
VPN 3000 Concentrator Series User Guide
CHAPTER
5
Servers
Configuring servers means identifying them to the VPN 3000 Concentrator so it can communicate with
them correctly. These servers provide user authentication and accounting functions, convert hostnames
to IP addresses, assign client IP addresses, and synchronize the syste m with network time. The VPN
Concentrator functions as a client of these servers.

Configuration | System | Servers

This section of the Manager lets you configure the VPN Concentrator to communicate with servers for
various functions.
•Authentication Servers: user authentication.
•Accounting Servers: RADIUS user accounting.
•DNS Servers: Domain Name System.
•DHCP Servers: Dynamic Host Configuration Protocol.
•NTP Servers: Network Time Protocol.
You can also configure the VPN Concentrator internal authentication server here if you have not already
done so during Quick Configuration.
Figure 5-1: Configuration | System | Servers screen