Virtual Servers. Comtrend Corporation NexusLink 3120, VR-3063

5.2 NAT

For NAT features under this section to work, NAT must be enabled in at least one

PVC.

5.2.1 Virtual Servers

Virtual Servers allow you to direct incoming traffic from the WAN side (identified by

Protocol and External port) to the internal server with private IP addresses on the

LAN side. The Internal port is required only if the external port needs to be converted to a different port number used by the server on the LAN side.

A maximum of 32 entries can be configured.

To add a Virtual Server, click Add . The following will be displayed.

Click Apply/Save to apply and save the settings.

Consult the table below for field and header descriptions.

Field/Header Description

Use Interface

Select a Service

Or

Custom Service

Select a WAN interface from the drop-down menu.

User should select the service from the list.

Or

User can enter the name of their choice.

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Field/Header

Server IP Address

External Port Start

External Port End

Protocol

Internal Port Start

Internal Port End

Description

Enter the IP address for the server.

Enter the starting external port number (when you select

Custom Server). When a service is selected, the port ranges are automatically configured.

Enter the ending external port number (when you select

Custom Server). When a service is selected, the port ranges are automatically configured.

TCP, TCP/UDP, or UDP.

Enter the internal port starting number (when you select

Custom Server). When a service is selected the port ranges are automatically configured

Enter the internal port ending number (when you select

Custom Server). When a service is selected, the port ranges are automatically configured.

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