Technical Reference
OPEN824RL / RLW ADSL / VoIP Routers
96
Click
to create a new One-to-One NAT rule: The following appears:
The following table lists the
Virtual Server Entry
screen fields and their definitions:
Field Description
Time Schedule
A self-defined time period to enable your virtual server. You may specify a time schedule or
Always On
for the usage of this virtual server entry.
Application
User-defined description to identify this entry or click
to select existing
predefined rules. On clicking
20 predefined rules are available. Highlight the
radio button to select the rule, and the
Application, Protocol
and
External/Redirect Ports
will
be filled after the selection.
Protocol
The supported protocol for the virtual server. In addition to specifying the port number to be
used, you will also need to specify the protocol used. The protocol is determined by the
particular application. Most applications will use TCP or UDP.
Global IP
This defines a public / WAN IP Address for this application to use. This global IP Address
must be defined in the
Global IP Address
field.
External Port
The Port number on the Remote / WAN side used when accessing the virtual server.
Redirect Port
The Port number used by the local server in the LAN network.
Internal IP
Address
The private IP in the LAN network which will provide the virtual server application.
This link lists all existing PCs connecting to the network. You may assign
a PC with IP Address and MAC from this list.
Apply
Click the
Apply
button to apply the changes to settings.
Example: List of some well-known and registered port numbers.
The Internet Assigned Numbers Authority (IANA) is the central coordinator for the assignment of unique
parameter values for Internet protocols. Port numbers range from 0 to 65535, but only ports numbers 0 to
1023 are reserved for privileged services and are designated as “well-known ports” (Please refer to Table 5 for
more information). The registered ports are numbered from 1024 through 49151. The remaining ports,
referred to as dynamic or private ports, are numbered from 49152 through 65535.
For further information, please see IANA’s website at:
http://www.iana.org/assignments/port-numbers
