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Chapter 4
Using the Command-Line Interface for Quick Configuration
Dynamic Host Configuration Protocol (DHCP) is a communications protocol that lets IP hosts in its
network automatically obtain IP addresses from a limited pool of addresses for a fixed length of time, or
lease period. Using DHCP simplifies configuration since you can manage the assignment of IP addresses
from a central point. You do not need to manually enter an IP address for the public interface, and you
do not need to know what IP addresses are considered valid on a particular network.
The DHCP server for the Public interface resides on the central-site VPN Concentrator.
Step 1
To obtain an IP address for the public interface using DHCP, at the prompt enter 2 and press Enter. The
system proceeds to the IPSec parameters; see the section,
Configuring PPPoE
PPP over Ethernet (PPPoE) is a proposal that specifies how a host PC interacts with a broadband
modem—xDSL, cable, wireless—to achieve access to high-speed data networks. It relies on the Ethernet
and PPP standards. It includes an authentication strategy that requires a username and password to create
a PPPoE session on the VPN 3002.
To configure the VPN 3002 to use PPPoE, follow these steps:
Step 1
At the prompt enter 3, and press Enter. The system prompts for a PPPoE username.
OL-2854-01
5) Back
Quick -> [2]
This table shows current IP addresses.
Intf
Status
-------------------------------------------------------------------------------
Pri Intf|
UP
Pub Intf|
Disabled
-------------------------------------------------------------------------------
DNS Server(s): DNS Server Not Configured
DNS Domain Name: ispdomain.com
Default Gateway: 130.0.0.1
1) Configure System Name (hostname)
2) Obtain address via DHCP for the Public Interface
3) Use PPPoE to Connect to a Public Network
4) Configure the Public Interface
5) Back
Quick ->
Quick -> 3
> PPPoE User Name
IP Address/Subnet Mask
|
10.10.99.50/255.255.0.0
|
0.0.0.0/0.0.0.0
Configuring the Public Interface
"Configuring
IPSec."
MAC Address
|
00.90.A4.00.25.A8
|
00.90.A4.00.25.A9
VPN 3002 Hardware Client Getting Started
4-9
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