Avaya Business Secure Router 252 Configuration - Basics Manuel d'utilisateur télécharger pdf (Page 135)

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Chapter 8 Network Address Translation (NAT) Screens 135

Nortel Business Secure Router 252 Configuration — Basics

SUA Server

A SUA server set is a list of inside (behind NAT on the LAN) servers, for

example, web or FTP, that you can make visible to the outside world even though

SUA makes your whole inside network appear as a single computer to the outside

world.

You can enter a single port number or a range of port numbers to be forwarded,

and the local IP address of the desired server. The port number identifies a service;

for example, web service is on port 80 and FTP on port 21. In some cases, such as

for unknown services or where one server can support more than one service (for

example, both FTP and web service), it is better to specify a range of port

numbers. You can allocate a server IP address that corresponds to a port or a range

of ports.

With many residential broadband ISP accounts you cannot run any server

processes (such as a Web or FTP server) from your location. Your ISP periodically

checks for servers and can suspend your account if it discovers any active services

at your location. If you are unsure, refer to your ISP.

Default server IP address

In addition to the servers for specified services, NAT supports a default server IP

address. A default server receives packets from ports that are not specified in this

screen.

Note: If you do not assign a Default Server IP Address, the Business

Secure Router discards all packets received for ports that are not

specified here or in the remote management setup.

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Avaya Business Secure Router 252 Configuration - Basics Manuel d'utilisateur Page 135

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