ZyXEL Communications ZyXEL ZyWALL 35 - Manual (Page 307)

ZyWALL 35 User’s Guide
Chapter 16 Network Address Translation (NAT) 305
Figure 147 Port Translation Example
16.6 Configuring Port Forwarding
Click NAT and Port Forwarding to open the Port Forwarding screen.
Refer to Figure 101 for port numbers commonly used for particular services.
Note: If you do not assign a Default Server IP address, the
ZyWALL discards all packets received for ports that are not
specified here or in the remote management setup.
Note: The last port forwarding rule is reserved for Roadrunner
services. The rule is activated only when you set the WAN
Encapsulation to Ethernet and the Service Type to
something other than Standard.