Siemens 5881 manual Configure the NAT Server

SIEMENS 5881 Broadband Internet Router	Chapter 6 Security Setup
User’s Guide	NAT

Configure the NAT Server

To configure NAT for inbound traffic:

1. Click NAT Server on the left navigation pane. This displays the NAT Server Settings page.

2.Select the interface you want to configure from the Source Interface drop-down menu.

3.Do one of the following:

•Select the network service you are configuring from the Service drop-down menu for Easy Setup. This configures NAT to support the most common network services.

•For Advanced Setup, select a protocol from the Protocol drop-down menu and specify a First Port # to assign a port number for the protocol to use. To assign a range of port numbers, specify a Last Port # as well.

4.Enter the IP address of the local machine in IP Address.

5.Do one of the following to enter port Information for the selected service:

•Click Add next to Default Port # to use the default port for the specified service.

•Enter the port number on the local machine you want the specified service to use in Port #, and click Add. Leave this field blank if you want the local machine to use the same port number as the WAN.

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