P-660R-T Series User’s Guide
Chapter 7 Network Address Translation (NAT) Screens
80
Note:
1. Choose
SUA Only
if you have just one public WAN IP address for your
Prestige.
2. Choose
Full Feature
if you have multiple public WAN IP addresses for your
Prestige.
7.3 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 may 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 might be 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.
Many residential broadband ISP accounts do not allow you to run any server processes (such
as a Web or FTP server) from your location. Your ISP may periodically check for servers and
may suspend your account if it discovers any active services at your location. If you are
unsure, refer to your ISP.
7.3.1 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 an IP address in
Server Set 1
(default server) the Prestige
discards all packets received for ports that are not specified here or in the
remote management setup.
7.3.2 Port Forwarding: Services and Port Numbers
The most often used port numbers are shown in the following table. Please refer to RFC 1700
for further information about port numbers.
Table 16
Services and Port Numbers
SERVICES
PORT NUMBER
ECHO
7
FTP (File Transfer Protocol)
21
SMTP (Simple Mail Transfer Protocol)
25
DNS (Domain Name System)
53
Finger
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Summary of Contents for ADSL2+ 4-port Gateway P-660H-D Series
Page 1: ...P 660R T Series ADSL2 Ethernet Gateway User s Guide Version 3 40 6 2005 ...
Page 23: ...P 660R T Series User s Guide 23 ...
Page 27: ...P 660R T Series User s Guide 27 ...
Page 31: ...P 660R T Series User s Guide 31 Introduction to DSL ...
Page 39: ...P 660R T Series User s Guide 39 Chapter 1 Getting To Know Your Prestige ...
Page 57: ...P 660R T Series User s Guide 57 Chapter 4 Password Setup ...
Page 65: ...P 660R T Series User s Guide 65 Chapter 5 LAN Setup ...
Page 75: ...P 660R T Series User s Guide 75 Chapter 6 WAN Setup ...
Page 87: ...P 660R T Series User s Guide 87 Chapter 7 Network Address Translation NAT Screens ...
Page 95: ...P 660R T Series User s Guide 95 Chapter 10 Remote Management Configuration ...
Page 107: ...P 660R T Series User s Guide 107 Chapter 11 Universal Plug and Play UPnP ...
Page 127: ...P 660R T Series User s Guide 127 Chapter 14 Menu 1 General Setup ...
Page 131: ...P 660R T Series User s Guide 131 Chapter 15 Menu 2 WAN Backup Setup ...
Page 135: ...P 660R T Series User s Guide 135 Chapter 16 Menu 3 LAN Setup ...
Page 157: ...P 660R T Series User s Guide 157 Chapter 19 Static Route Setup ...
Page 161: ...P 660R T Series User s Guide 161 Chapter 20 Bridging Setup ...
Page 177: ...P 660R T Series User s Guide 177 Chapter 21 Network Address Translation NAT ...
Page 205: ...P 660R T Series User s Guide 205 Chapter 24 System Information and Diagnosis ...
Page 217: ...P 660R T Series User s Guide 217 Chapter 25 Firmware and Configuration File Maintenance ...
Page 223: ...P 660R T Series User s Guide 223 Chapter 26 System Maintenance ...
Page 227: ...P 660R T Series User s Guide 227 Chapter 27 Remote Management ...
Page 237: ...P 660R T Series User s Guide 237 Chapter 28 IP Policy Routing ...
Page 241: ...P 660R T Series User s Guide 241 Chapter 29 Call Scheduling ...
Page 253: ...P 660R T Series User s Guide 253 Chapter 30 Troubleshooting Figure 173 Java Sun ...
Page 257: ...P 660R T Series User s Guide 257 Appendix A ...
Page 281: ...P 660R T Series User s Guide 281 Appendix C IP Subnetting ...
Page 284: ...P 660R T Series User s Guide Appendix D Splitters and Microfilters 284 ...
Page 285: ...P 660R T Series User s Guide 285 Appendix D Splitters and Microfilters ...
Page 287: ...P 660R T Series User s Guide 287 Appendix E Command Interpreter ...
Page 295: ...P 660R T Series User s Guide 295 Virtual Circuit Topology ...