46

D-Link DSL-2740R

Section 3 - Configuration

IP/Mac Filter

This is the ability to set filters in the router and re-direct data through those to a single PC on your network.

SELECT IP/MAC FILTER RULE INDEX

Choose

Both, Incoming,

or

Outgoing

in

Direction

.

Type the

Source IP address, Subnet Mask

, and

Port Number

.

Type

Destination IP address, Subnet Mask

, and

Port Number

.

Choose

ICMP, TCP,

or

UDP

in

Protocol

.

Click

Save

to add the policy in the list.

47

D-Link DSL-2740R

Section 3 - Configuration

DNS Setup

The DNS is used to resolve the DNS name to IPs. You can type the DNS name or obtain it automatically.

The Dynamic DNS feature allows you to host a server (Web, FTP, Game Server, etc.) using a domain name that you have purchased (for example:

www.whateveryournameis.com) with your dynamically assigned IP address. Most broadband Internet Service Providers assign dynamic (changing)

IP addresses. Using a DDNS service provider, your friends can just enter your host name to connect to your game server without having to know

your IP address.

To access the

DNS

setting window, click on the

DNS

button under the

ADVANCED

tab.

DNS AND DEFAULT GATEWAY

If you are using the router for DHCP service on the LAN and are

using DNS servers on the ISP’s network, check the

Obtain DNS

server address automatically

box.

If you have DNS IP addresses provided by your ISP, enter these

IP addresses in the available entry fields for the

Preferred

DNS Server

and the

Alternate DNS Server

.

48

D-Link DSL-2740R

Section 3 - Configuration

DDNS CONFIGURATION

Please access a DDNS web server to obtain a domain name. You can

use the D-Link DDNS server at https://www.dlinkddns.com to receive

a free DDNS.

Please enable

Enable Dynamic DNS

if you want to use DDNS.

Choose which DDNS web site to use in

Server Address

.

Type the Host name which you registered with your DDNS service

provider in

Host Name

.

Type the username/password on the

Username/Password/Verify

Password

of your DDNS account.

After you have configured the DNS settings as desired, click

Apply

to

apply the settings.

49

D-Link DSL-2740R

Section 3 - Configuration

Firewall & DMZ

The router already provides a simple firewall by virtue of the way NAT works. By default NAT does not respond to unsolicited incoming requests on

any port, thereby making your WAN invisible to Internet cyber attackers.

DMZ means Demilitarised Zone. DMZ allows computers behind the router firewall to be accessible to Internet traffic. Typically, your DMZ would

contain Web servers, FTP servers, and others.

FIREWALL SETTINGS

Enable the Firewall by clicking

Enable Firewall

.

Enable the SPI on clicking

Enable SPI

.

Enable the ALG on clicking

Enable ALG

.

50

D-Link DSL-2740R

Section 3 - Configuration

DMZ SETTINGS

Please select

Enable DMZ

and type the DMZ client IP in the

DMZ IP Address

.

Or you also can choose the DMZ host using the pulldown menu.

Click on

Apply Settings

to apply these settings.