3 Interfaces
3-8 VPN 3000 Concentrator Series User Guide
Figure 3-3: Configuration | Interfaces | Ethernet 1 2 3 screen, General tab
General Parameters tab
This tab lets you configure general interface parameters: IP address, subne t mask, public interface status,
filter, speed, and transmission mode.
Enabled
To make the interface functional and online, check Enabled. If not enabled, the interface is offline; this
state lets you retain or change its configuration parameters while it is offline.
If the interface is configured but disabled (offline), the appropriate Ethernet Link Status LED blinks green
on the VPN Concentrator front panel.
IP Address
Enter the IP address for this interface, using dotted decimal notation (e.g., 192.168.12.34). Note that
0.0.0.0 is not allowed. Be sure no other device is using this address o n the network.
Subnet Mask
Enter the subnet mask for this interface, using dotted decimal notation (e.g., 255.255.255.0). The
Manager automatically supplies a standard subnet mask appropriate for the IP address you just entered.
For example, the IP address 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. Note that 0.0.0.0 is not allowed.
Public Interface
To make this interface a public interface, check the box. A public interface is an interface to a public
network, such as the Internet. You must configure a public interface before you can configure NAT and