ZyXEL Communications 650 Series Manuel D’Utilisation

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Prestige 650 series User’s Guide 
Creating Custom Rules 
 
12-3 
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? 
12.3 Connection Direction 
This section talks about configuring firewall rules for connections going from LAN to WAN and WAN to 
LAN in your firewall. 
12.3.1 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 12-1 LAN to WAN Traffic