Port Forwarding: Services And Port Numbers; Configuring Sua Servers - Zywall; Table 43 Services And Port Numbers - ZyXEL Communications VANTAGE CNM User Manual

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.

9.3.1 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. Please also refer to the Supporting CD for more
examples and details on SUA/NAT

Table 43 Services and Port Numbers

ECHO
FTP (File Transfer Protocol)
SMTP (Simple Mail Transfer Protocol)
DNS (Domain Name System)
Finger
HTTP (Hyper Text Transfer protocol or WWW, Web)
POP3 (Post Office Protocol)
NNTP (Network News Transport Protocol)
SNMP (Simple Network Management Protocol)
SNMP trap
PPTP (Point-to-Point Tunneling Protocol)1723
9.3.2 Configuring SUA Servers – ZyWALL
Select SUA Only in
Chapter 9 Configuration > NAT
Note: If you do not assign a Default Server IP Address, the
ZyXEL device discards all packets received for ports that are
not specified here or in the remote management setup.
Services and Port Numbers.
Note: 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.
SERVICES
Figure 64 on page 137 and then click Edit to bring up the next screen.
Vantage CNM User's Guide
PORT NUMBER
21
25
53
79
80
110
119
161
162
138