ZyXEL Communications 5 Series User Manual

 Chapter 13 Firewall Screens

ZyWALL 5/35/70 Series User’s Guide

Rule 1 allows a My Service connection from the WAN to IP addresses 10.0.0.10 through 
10.0.0.15 on the LAN.

Figure 158   My Service Firewall Rule Example: Rule Summary 

This technical reference contains the following sections:

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Firewall rules are grouped based on the direction of travel of packets to which they apply. This 
section gives some examples of why you might configure firewall rules for specific 
connection directions. 

By default, the ZyWALL allows packets traveling in the following directions.:

• LAN to LAN

These rules specify which computers on the LAN can manage the 
ZyWALL (remote management) and communicate between networks or 
subnets connected to the LAN interface (IP alias). 

Note: You can also configure the remote management settings to 

allow only a specific computer to manage the ZyWALL.

• LAN to WAN 

1

These rules specify which computers on the LAN can access which 
computers or services connected to WAN 1. See 

 for an example.