Connection Direction; Figure 13-1 Lan To Wan Traffic; Source Address; Wan To Lan Rules - ZyXEL Communications Prestige 660W Series User Manual

Prestige 660W/HW series User's Guide

Source Address

What is the connection's source address; is it on the LAN or WAN? Is it a single IP, a range of IPs or a
subnet?
Destination Address
What is the connection's destination address; is it on the LAN or WAN? Is it a single IP, a range of IPs or a
subnet?

13.3 Connection Direction

This section talks about configuring firewall rules for connections going from LAN to WAN and WAN to
LAN in your firewall.
13.3.1 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 a LAN to WAN rule, you in essence want to limit some or all users from
accessing certain services on the WAN. See the following figure.

Figure 13-1 LAN to WAN Traffic

13.3.2 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 13-3