Connection Direction; Lan To Wan Rules; Wan To Lan Rules; Figure 16-1 Lan To Wan Traffic - ZyXEL Communications ZyXEL ZYWALL10 User Manual

ZyWALL 10 Internet Security Gateway

16.3 Connection Direction

This section talks about configuring firewall rules for connections going from LAN to WAN and WAN to
LAN in your firewall.

16.3.1 LAN to WAN Rules

The default rule for LAN to WAN traffic is that all users on the LAN are allowed non-restricted access to the
WAN. When you configure Policy -> LAN to WAN -> Rules, you in essence want to limit some or all users
from accessing certain services on the WAN. See the following figure.

Figure 16-1 LAN to WAN Traffic

16.3.2 WAN to LAN Rules

The default rule for WAN to LAN traffic blocks all incoming connections (WAN to LAN). If you wish to
allow certain WAN users to have access to your LAN, you will need to create custom rules to allow it.
See the following figure.
Creating Custom Rules 16-3