6 configuring port forwarding, Figure 87 multiple servers behind nat example – ZyXEL Communications 802.11g HomePlug AV ADSL2+ Gateway P-660HWP-Dx User Manual
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Chapter 9 Network Address Translation (NAT)
P-660HWP-Dx User’s Guide
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9.5.3 Configuring Servers Behind Port Forwarding (Example)
Let's say you want to assign ports 21-25 to one FTP, Telnet and SMTP server (A in the
example), port 80 to another (B in the example) and assign a default server IP address of
192.168.1.35 to a third (C in the example). You assign the LAN IP addresses and the ISP
assigns the WAN IP address. The NAT network appears as a single host on the Internet.
Figure 87 Multiple Servers Behind NAT Example
9.6 Configuring Port Forwarding
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The Port Forwarding screen is available only when you select SUA Only in the
NAT > General screen.
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If you do not assign a Default Server IP address, the P-660HWP-Dx discards all
packets received for ports that are not specified here or in the remote
management setup.
Click Network > NAT > Port Forwarding to open the following screen.
See
for port numbers commonly used for particular services.
SNMP trap
162
PPTP (Point-to-Point Tunneling Protocol)
1723
Table 50 Services and Port Numbers
SERVICES
PORT NUMBER