DSL-2640U Wireless ADSL2+ Router with Ethernet WAN Support
User Manual
Configuring via Web-based Interface
You can specify the following parameters:
Parameter Description
General Settings
Name
A name for the virtual server for easier identification. You can
specify any name.
Template
Select a virtual server template from the drop-down list, or select
Custom to specify all parameters of the new virtual server
manually.
Interface
A WAN connection to which this virtual server will be assigned.
Protocol
A protocol that will be used by the new virtual server. Select a value
from the drop-down list.
NAT Loopback
Move the switch to the right in order to let the users of the router's
LAN access the local server using the external IP address of the
router or its DDNS name (if a DDNS service is configured). Users
from the external network access the router using the same address
(or DDNS name).
Public Network Settings
Remote IP
Enter the IP address of the server from the external network.
To add one more IP address, click the ADD REMOTE IP button and
enter the address in the displayed line.
To remove the IP address, click the Delete icon ( ) in the line of
the address.
Public port (begin)/
Public port (end)
A port of the router from which traffic is directed to the IP address
specified in the Private IP field in the Private Network Settings
section. Specify the start and the end value for the port range. If you
need to specify one port, enter the needed value in the Public port
(begin) field and leave the Public port (end) field blank.
Private Network Settings
Private IP
The IP address of the server from the local area network. To choose
a device connected to the router's LAN at the moment, select the
relevant value from the drop-down list (the field will be filled in
automatically).
Private port (start)/
Private port (end)
A port of the IP address specified in the Private IP field to which
traffic is directed from the Public port. Specify the start and the
end value for the port range. If you need to specify one port, enter
the needed value in the Private port (start) field and leave the
Private port (end) field blank.
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