Port Forwarding: Services And Port Numbers; Configuring Servers Behind Sua (Example); Table 25 Services And Port Numbers - Nortel BSR252 Configuration - Basics

136 Chapter 8 Network Address Translation (NAT) Screens

Port forwarding: Services and Port Numbers

The most often used port numbers are shown in
Numbers (RFC 1700) for further information about port numbers.

Table 25 Services and port numbers

Services
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)

Configuring servers behind SUA (example)

For example, 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
NN47923-500
Table 25. Refer to Assigned
Port Number
7
21
25
53
79
80
110
119
161
162
1723
Figure 36.