802.11n Wireless ADSL2/2+ Router

ADN-4101

3.5 Service

In the navigation bar, click

Service

. On the

Service

page that is displayed contains

DNS

,

Firewall

,

UPNP

,

IGMP

Proxy

,

TR-069

and

ACL

.

3.5.1 DNS

Domain Name System (DNS) is an Internet service that translates the domain name into IP address. Because the

domain name is alphabetic, it is easier to remember. The Internet, however, is based on IP addresses. Every time you

use a domain name, DNS translates the name into the corresponding IP address. For example, the domain name

www.example.com might be translated to 198.105.232.4. The DNS has its own network. If one DNS server does not

know how to translate a particular domain name, it asks another one, and so on, until the correct IP address is

returned.

Choose

Service

>

DNS

.

The

DNS

page that is displayed contains

DNS

and

DDNS

.

3.5.1.1 DNS

Click

DNS

in the left pane and the page shown in the following figure appears.

The following table describes the parameters and buttons on this page:

Field

Description

Attain DNS

Automatically

Select it, the router accepts the first received DNS assignment from one of the PPPoA,

PPPoE or MER enabled PVC(s) during the connection establishment.

Set DNS Manually

Select it and enter the IP addresses of the primary and secondary DNS server.

Apply Changes

Click it to save the settings of this page.

Reset Selected

Click it to start configuring the parameters on this page.

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802.11n Wireless ADSL2/2+ Router

ADN-4101

3.5.1.2 DDNS

Click

DDNS

in the left pane and the page shown in the following figure appears. This page is used to configure the

dynamic DNS address from DynDNS.org, TZO or Planet. You can add or remove to configure dynamic DNS.

The Planet DDNS is free for customer.

The following table describes the parameters on this page:

Field

Description

DDNS provider

Choose the DDNS provider name. You can choose

DynDNS.org

,

TZO

or Planet

.

Host Name

The DDNS identifier.

Interface

The WAN interface of the router.

Enable

Enable or disable DDNS function.

Username

The name provided by DDNS provider.

Password

The password provided by DDNS provider.

Email

The email provided by DDNS provider.

Key

The key provided by DDNS provider.

3.5.2 Firewall

Choose

Service > Firewall

and the

Firewall

page that is displayed contains

IP/Port Filter

,

MAC Filter

,

URL Filter

,

Anti

-

DoS

and

Software Forbidden

.

3.5.2.1 IP/Port Filter

Click

IP/Port Filter

in the left pane and the page shown in the following figure appears. Entries in the table are used to

restrict certain types of data packets through the gateway. These filters are helpful in securing or restricting your local

network.

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802.11n Wireless ADSL2/2+ Router

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3.5.2.2 MAC Filter

Click

MAC Filter

in the left pane and the page shown in the following figure appears. Entries in the table are used to

restrict certain types of data packets from your local network to Internet through the gateway. These filters are helpful

in securing or restricting your local network.

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802.11n Wireless ADSL2/2+ Router

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3.5.2.3 URL Filter

Click

URL Filter

in the left pane and the page shown in the following figure appears. This page is used to block a fully

qualified domain name, such as tw.yahoo.com and filtered keyword. You can add or delete FQDN and filtered

keyword.

The following table describes the parameters and buttons on this page:

Field

Description

URL Blocking Capability

You can choose

Disable

or

Enable

.

°

Select

Disable

to disable URL/KEYWORD blocking function and keyword

filtering function.

°

Select

Enable

to block access to the URLs and keywords specified in the

URL

Blocking Table

.

Keyword

Enter the keyword to block.

Add Keyword

Click it to add a URL/keyword to the

URL Blocking Table

.

Delete

Select a row in the

URL Blocking Table

and click it to delete the row.

URL Blocking Table

A list of the URL (s) to which access is blocked.

3.5.2.4 Anti-DoS

Denial-of-Service Attack (DoS attack) is a type of attack on a network that is designed to bring the network to its knees

by flooding it with useless traffic.

Click

Anti-DoS

in the left pane and the page shown in the following figure appears. On this page, you can prevent

DoS attacks.

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802.11n Wireless ADSL2/2+ Router

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3.5.2.5 Software Forbidden

Click

Software Forbidden

in the left pane and the page shown in the following figure appears. This interface realizes

application control. Select an application from the drop-down list to prohibit the application from accessing network

resources.

The following table describes the parameters and buttons on this page:

Field

Description

Current Forbidden Software

List

A list of currently forbidden applications for accessing the network.

Add Forbidden Software

Select an application to be forbidden from accessing the network.