DSL-2520U

ADSL2/2+ Router with USB and Ethernet Ports

User Manual

Configuring via Web-based Interface

Figure 30. The page for adding a DDNS service.

You can specify the following parameters:

Parameter

Description

DDNS Service

Select a DDNS provider from the drop-down list.

Host name

The domain name registered at your DDNS provider.

User name

The username to authorize for your DDNS provider.

User password

The password to authorize for your DDNS provider.

Interface

Select a WAN connection which IP address will be used to access

the DDNS service.

Click the

Change

button.

To edit parameters of the existing DDNS service, click the relevant service link. On the opened

page, change the needed parameters and click the

Change

button.

To remove an existing DDNS service, click the relevant service link. On the opened page, click the

Delete

button.

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DSL-2520U

ADSL2/2+ Router with USB and Ethernet Ports

User Manual

Configuring via Web-based Interface

DNS

On the

Advanced / DNS

page, you can add DNS servers to the system.

Figure 31. The

Advanced / DNS

page.

DNS servers are used to determine the IP address from the name of a server in Intranets or the

Internet (as a rule, they are specified by an ISP or assigned by a network administrator).

The device performs the DNS relay function, i.e., it redirects the DNS requests of users to external

DNS servers. You can specify the addresses of DNS servers manually on this page, or configure the

router to obtain DNS servers addresses automatically from your ISP upon installing a connection.

!

When you use the built-in DHCP server, the network parameters (including DNS servers)

are distributed to clients automatically.

If you want to configure automatic obtainment of DNS servers addresses, deselect the

Manual

checkbox, select a WAN connection which will be used to obtain addresses of DNS servers

automatically from the

Interface

drop-down list, and click the

Change

button.

If you want to specify the DNS server manually, select the

Manual

checkbox and enter a DNS

server address in the

Name servers

list. To specify several addresses, press the Enter key and

enter a needed address in the next line. Then click the

Change

button.

To remove a DNS server from the system, remove the relevant line from the

Name servers

field

and click the

Change

button.

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DSL-2520U

ADSL2/2+ Router with USB and Ethernet Ports

User Manual

Configuring via Web-based Interface

Routing

On the

Advanced / Routing

page, you can add static routes (routes for networks that are not

connected directly to the device but are available through the interfaces of the device) into the

system.

Figure 32. The

Advanced / Routing

page.

To create a new route, click the

Add

button.

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DSL-2520U

ADSL2/2+ Router with USB and Ethernet Ports

User Manual

Configuring via Web-based Interface

Figure 33. The page for adding a static route.

You can specify the following parameters:

Parameter

Description

Destination network

A destination network to which this route is assigned.

Destination netmask

The destination network mask.

Gateway

An IP address through which the destination network can be

accessed.

Metric

A metric for the route. The lower the value, the higher is the route

priority.

Optional

.

Via Interface

Select an interface (connection) through which the destination

network can be accessed from the drop-down list. If you have

selected the

<Auto>

value of this drop-down list, the router itself

sets the interface on the basis of data on connected networks.

Click the

Save

button.

To edit an existing route, select the needed route in the table. On the opened page, change the

needed parameters and click the

Save

button.

To remove an existing route, select the needed route in the table. On the opened page, click the

Delete

button.

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DSL-2520U

ADSL2/2+ Router with USB and Ethernet Ports

User Manual

Configuring via Web-based Interface

ADSL

The

Advanced / ADSL

page includes the set of ADSL standards that should be defined by an

ISP. Contact your ISP to set proper parameters. Select the relevant options and click the

Change

button.

Figure 34. The

Advanced / ADSL

page.

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