Page 46 / 67
Scroll up to view Page 41 - 45
DSL-2520U
ADSL2/2+ Router with USB and Ethernet Ports
User Manual
Configuring via Web-based Interface
Remote Access
On the
Advanced / Remote access
page, you can configure remote access to the web-based
interface of the router. By default, the access from external networks to the router is closed. If you
need to allow access to the router from the external network, create relevant rules.
Figure 35. The
Advanced / Remote access
page.
To create a new rule, click the
Add
button.
Page
46
of 67
Page 47 / 67
DSL-2520U
ADSL2/2+ Router with USB and Ethernet Ports
User Manual
Configuring via Web-based Interface
Figure 36. The page for adding a rule for remote management.
You can specify the following parameters:
Parameter
Description
Name
A name for the rule for easier identification. You can specify any
name.
Interface
A physical interface through which the web-based interface of the
router is accessed.
IP address
A host or a subnet to which the rule is applied.
Mask
The mask of the subnet.
Protocol
The protocol available for remote management of the router (HTTP,
ICMP, TELNET).
Click the
Change
button.
To edit a rule for remote access, click the relevant link. On the opened page, change the needed
parameters and click the
Change
button.
To remove a rule for remote access, click the relevant link. On the opened page, click the
Delete
button.
Page
47
of 67
Page 48 / 67
DSL-2520U
ADSL2/2+ Router with USB and Ethernet Ports
User Manual
Configuring via Web-based Interface
Firewall
In this menu you can configure the firewall of the router: add rules for IP filtering, define a DMZ-
zone, create virtual servers, configure MAC-filters and the Port Triggering function.
IP Filters
On the
Firewall / IP-filters
page, you can create new rules for filtering IP packets and edit or
remove existing rules.
Figure 37. The
Firewall / IP-filters
page.
To create a new rule, click the
Add
button.
Page
48
of 67
Page 49 / 67
DSL-2520U
ADSL2/2+ Router with USB and Ethernet Ports
User Manual
Configuring via Web-based Interface
Figure 38. The page for adding a rule for IP filtering.
You can specify the following parameters:
Parameter
Description
IP-filter rule editing
Name
A name for the rule for easier identification.
Protocol
A protocol for network packet transmission. Select a value from the
drop-down list.
IP Addresses
IP address range
Select the checkbox if you want to specify a range of IP addresses as
the source or destination IP address.
Source
The source host/subnet IP address. To specify an IP address leave
32
in the field following the slash character (/).
Destination
The destination host/subnet IP address. To specify an IP address
leave
32
in the field following the slash character (/).
Ports
Page
49
of 67
Page 50 / 67
DSL-2520U
ADSL2/2+ Router with USB and Ethernet Ports
User Manual
Configuring via Web-based Interface
Parameter
Description
Source
A port of the source IP address. You can specify one port, several
ports separated by a comma, or a range of ports separated by a colon.
Destination
A port of the destination IP address. You can specify one port,
several ports separated by a comma, or a range of ports separated by
a colon.
Click the
Change
button.
To edit a rule for IP filtering, select the relevant rule in the table. On the opened page, change the
needed parameters and click the
Change
button.
To remove a rule for IP filtering, select the relevant rule in the table. On the opened page, click the
Delete
button.
Virtual Servers
On the
Firewall / Virtual servers
page, you can create virtual servers for redirecting incoming
Internet traffic to a specified IP address in the local area network.
Figure 39. The
Firewall / Virtual servers
page.
To create a new virtual server, click the
Add
button.
Page
50
of 67
19216811.live