Configuring Servers Behind Port Forwarding (Example) - ZyXEL Communications PMG5318-B20A User Manual

However, you can assign one of the computers on your LAN with a default server IP address. This
allows it to receive all traffic that is not specifically routed by a port forwarding rule, including ping.
Figure 40 Pinging a Device Behind NAT
If you want to assign the IP address 192.168.0.202 as your "catch-all" category, for example, you
can designate it as the GPON Device's default server. Port forwarding rule 1 (R1) sends all TCP/UDP
traffic that matches the rule to 192.168.0.17 while port forwarding rule 2 (R2) sends TCP/UDP
traffic that matches to 192.168.0.106. Everything else (NR) goes to 192.168.0.202. For details on
assigning a default server IP address, see

7.2.4 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
PMG5318-B20A User's Guide
Section 7.3 on page 76.
Chapter 7 NAT
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