Chapter 11 Network Address Translation (NAT)
Nebula Mobile Router User’s Guide
205
11.6.4 NAT Application
The following figure illustrates a possible NAT application, where three inside LANs (logical LANs using IP
alias) behind the Zyxel Device can communicate with three distinct WAN networks.
Figure 132
NAT Application With IP Alias
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 port forwarding and NAT.
Table 78 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
79
HTTP (Hyper Text Transfer protocol or WWW, Web)
80
POP3 (Post Office Protocol)
110
ZD
Summary of Contents for LTE3301-PLUS
Page 16: ...16 PART I User s Guide...
Page 43: ...Chapter 3 Web Configurator Nebula Mobile Router User s Guide 43 Figure 31 Connection Status...
Page 50: ...Chapter 3 Web Configurator Nebula Mobile Router User s Guide 50 Figure 36 Check Icons...
Page 89: ...Nebula Mobile Router User s Guide 89 PART II Technical Reference...
Page 361: ...Index Nebula Mobile Router User s Guide 361 Zyxel Nebula Control Center 18...
