ZyXEL Communications Prestige 650H-E Series - Manual (Page 16)

Prestige 650H-E
16
5.2 Configuring SUA Server
An 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.
Table 3 Common Services and Port Numbers
SERVICES PORT
NUMBER
SERVICES PORT
NUMBER
ECHO 7 HTTP (Hyper Text Transfer protocol or
WWW, Web) 80
FTP (File Transfer Protocol) 21 POP3 (Post Office Protocol) 110
SMTP (Simple Mail Transfer Protocol) 25 NNTP (Network News Transport Protocol) 119
DNS (Domain Name System) 53 SNMP (Simple Network Management
Protocol) 161
Finger 79 SNMP trap 162
PPTP (Point-to-Point Tunneling Protocol) 1723
Let's say you want to assign ports 22-25 to one server, port 80 to another and assign a default server
IP address of 192.168.1.35 as shown in the next figure.
Figure 14 Multiple Servers Behind NAT Example