16-1
VPN 3000 Concentrator Series User Guide
CHAPTER
16
Using the Command Line Interface
The VPN 3000 Concentrator Series Command Line Interface (CLI) i s a menu- and command-line-based
configuration, administration, and monitoring system built into the VPN Concentrator. You use it via the
system console or a Telnet (or Telnet over SSL) session.
You can use the CLI to completely manage the system. You can access and configure the same
parameters as the HTML-based VPN 3000 Concentrator Series Manager, except for IPSec LAN-to-LAN
configuration.
This chapter describes general features of the CLI and how to access and use it. It does not de scribe the
individual menu items and parameter entries. For information on sp ecific parameters and options, see
the corresponding section of the VPN Concentrator Manager i n this manual. For example, to understand
Ethernet interface configuration parameters and choices, see Configuration | Interfaces | Ethernet 1 2 3 in
Chapter 3, Interfaces.

Accessing the CLI

You can access the CLI in two ways: via the system console or a Telnet (or Telnet over SSL) client.

Console access

To access the CLI via console:
1Connect a PC to the VPN Concentrator via a straight-through RS-232 serial cable (which Cisco
supplies with the system) between the Console port on the VPN Concentrator and the COM1 or serial
port on the PC. For more information, see the VPN Concentrator Getting Started manual.
2Start a terminal emulator (e.g., HyperTerminal) on the PC. Configure a conn ection to COM1 with
port settings of:
9600 bits per second.
8 data bits.
No parity.
1 stop bit.
Hardware flow control.
Set the emulator for VT100 emulation, or let it auto-detect the emulation type.