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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
ADN-4101
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
ADN-4101
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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45
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.
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