Nat - D-Link DSL-G604T User Manual

Wireless adslrouter

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DSL-G604T Wireless ADSL Router User's Guide

A DoS "denial-of-service" attack is characterized by an explicit attempt by attackers to prevent legitimate users

of a service from using that service. Examples include: attempts to "flood" a network, thereby preventing

legitimate network traffic, attempts to disrupt connections between two machines, thereby preventing access to a

service, attempts to prevent a particular individual from accessing a service, or, attempts to disrupt service to a

specific system or person.

Port scan protection is designed to block attempts to discover vulnerable ports or services that might be exploited

in an attack from the WAN.

The Service Filtering options allow you to block FTP, Telnet response, Pings, etc, from the external network.

Check the category you want to block to enable filtering of that type of packet.

When you have selected the desired Firewall policies, click the Apply button to enforce the policies. Remember

to save any configuration changes.

NAT

Network Address Translation (NAT) may be disabled on the Router. This should only be disabled if there are

specific reasons to do so. When NAT is disabled on the Router it is not possible to allow more that one computer

or server (any single IP address on the LAN) to access the Internet unless some form of NAT is provided by

another system.

NAT can be enabled or disabled system-wide. If you are using multiple connections (Multiple PVCs) the status

of NAT will be the same for all IP routed connections.

NAT Enable/Disable Menu

To disable or enable NAT, select the desired option Enable or Disabled from the pull-down menu and click the

Apply button.

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