Operation Manual

DC-202 xDSL/Cable Broadband router
44
Data - Special Applications Screen
Check-
box
Use this to Enable or Disable this Special Application as required.
Name
Enter a descriptive name to identify this Special Application.
Incom-
ing
Ports
• Type - Select the protocol (TCP or UDP) used when you receive data
from the special application or service. (Note: Some applications use
different protocols for outgoing and incoming data).
• Start - Enter the beginning of the range of port numbers used by the
application server, for data you receive. If the application uses a single
port number, enter it in both the "Start" and "Finish" fields.
• Finish - Enter the end of the range of port numbers used by the
application server, for data you receive.
Outgoing
Ports
• Type - Select the protocol (TCP or UDP) used when you send data to
the remote system or service.
• Start - Enter the beginning of the range of port numbers used by the
application server, for data you send to it. If the application uses a sin-
gle port number, enter it in both the "Start" and "Finish" fields.
• Finish - Enter the end of the range of port numbers used by the
application server, for data you send to it. If the application uses a sin-
gle port number, enter it in both the "Start" and "Finish" fields.
Using a Special Application
• Configure the Special Applications screen as required.
• On your PC, use the application normally. Remember that only one (1)
PC can use each Special application at any time. Also, when 1 PC is fin-
ished using a particular Special Application, there may need to be a
"Time-out" before another PC can use the same Special Application.
The "Time-out" period may be up to 3 minutes.
If an application still cannot function
correctly, try using the "DMZ" feature.
Multi-DMZ
This feature, if enabled, allows one (1) or more computers on your LAN to
be exposed to all users on the Internet.
• If you only have 1 WAN IP addresses, only DMZ 1 can be used. This
uses the primary IP address (which may be dynamic), so you do not
have to enter it.
• If you have multiple WAN IP addresses, you can specify a DMZ PC for
each IP address. You must enter the other WAN IP addresses which are
allocated to you.
The DMZ feature allows unrestricted 2-way communication between the
"DMZ PC" and other Internet users or Servers.
• This allows almost any application to be used on the "DMZ PC".
• The "DMZ PC" will receive all "Unknown" connections and data sent to
the corresponding IP address from the Internet.