Specifications

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VPN 3000 Series Concentrator Getting Started
78-15733-03
Chapter 3 Using the VPN Concentrator Manager for Quick Configuration
Configuring IP Interfaces
Figure 3-4 Configuration | Quick | IP Interfaces | Ethernet Screen
The screen displays the current parameters, if any, for an Ethernet interface. If you are modifying
Ethernet 1, the Manager also displays a caution message. To configure parameters for an Ethernet
interface, follow these steps:
Step 1 Choose one of the following options:
• If you want to disable this interface, click the Disabled radio button. If disabled, the interface is
offline; this state lets you retain or change its configuration parameters while it is offline.
• If you want to enable this interface and use DHCP to obtain an IP address, click the DHCP Client
radio button.
– In the System Name field, enter a name (such as VPN01) for the VPN Concentrator. This name
must uniquely identify this device on your network.
• If you want to enable this interface and set a static IP address for it, click the Static IP Addressing
radio button.
– In the IP Address field, enter the IP address for this interface, using dotted decimal notation (for
example, 192.168.12.34). Be sure no other device is using this address on the network.
– In the Subnet Mask field, enter the subnet mask for this interface, using dotted decimal notation
(for example, 255.255.255.0). The Manager automatically supplies a standard subnet mask
appropriate for the IP address you just entered. For instance, an IP address of 192.168.12.34 is
a Class C address, and the standard subnet mask is 255.255.255.0. You can accept this entry or
change it.
Step 2 To make this interface a public interface, check the Public Interface check box. A public interface is an
interface to a public network, such as the Internet. You should designate only one VPN Concentrator
interface as a public interface.