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Router configuration Guide Rev.1b

Digimerge Technologies Inc.

300Alden Road • Markham • Ontario • Canada • L3R4C1

tel: (905)946-8477 • fax: (905)947-0138

PORT FOWARDING AND DMZ OPTIONS

Before you start working with your router is important to :

1. Assign a static IP address and select the ports to your network device( * ) , ( See Appendix

B for more information ).

2. Have ready your router (gateway) IP address to access the router menus ( See appendix A for

more information).

3. Have the port list ready according with your product needs to create the forwarding rules. ( See

page 7 with all products listed).

The information provided in this manual is to guide and help the customer create forwarding rules or

port forwarding for specific ports on a router.

There are to ways to work with the router ports. The procedure may vary with the router manufacturer

option screens. The two options are:

1 . PORT FORWARDING RULES

2. THE DMZ

1. THE PORT FORWARDING RULES.

In order to allow users to access your Network Device ( * ) on the Internet (WAN) we need to create

forwarding rules . That means we need to open ports on the Router and forward ( Port forwarding ) the

data from a specific IP address . Once the Router has the ports opened the data will pass-through the

Router . Every router internally works and interacts with two IP addresses. One is the internal IP address

or gateway. The one works with your LAN and the other one is the external IP for the internet

communications.

When a Network Device sends data to a remote router on the internet , the router receive the

information and needs to know what to do with the data. The port forwarding feature what it does is to

tells the router where to send the data with the computer or network device attached to the LAN.

( * )Network device: Any IP addressable device or electronic equipment connected in a LAN such a

Digital video recorder, video server or computer.

When you create and enable the ports on the router ( The term is referred as forwarding rules) , the

router takes the data off the external IP address:port number ( this is called a socket) and sends that

data to an internal IP address:port number. The port forwarding rules are created per port.

Example using port 2000 : When the router receives the data from the external IP address, the

router works with the internal NAT ( Network address translation) and communicates the information from

the external IP to the internal IP address. The information from a distant router comes with a specific

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