3 the firewall, nat and remote management, 1 lan-to-wan rules, 2 wan-to-lan rules – ZyXEL Communications P-334 User Manual
Page 130: 1 lan-to-wan rules 11.3.2 wan-to-lan rules, Figure 45 firewall rule directions
Prestige 334 User’s Guide
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Chapter 11 Firewall
11.3 The Firewall, NAT and Remote Management
Figure 45 Firewall Rule Directions
11.3.1 LAN-to-WAN rules
LAN-to-WAN rules are local network to Internet firewall rules. The default is to forward all
traffic from your local network to the Internet.
How can you block certain LAN to WAN traffic?
You may choose to block certain LAN-to-WAN traffic in the Services screen (click the
Services tab). All services displayed in the Blocked Services list box are LAN-to-WAN
firewall rules that block those services originating from the LAN.
Blocked LAN-to-WAN packets are considered alerts. Alerts are “higher priority logs” that
include system errors, attacks and attempted access to blocked web sites. Alerts appear in red
in the View Log screen. You may choose to have alerts e-mailed immediately in the Log
Settings screen.
LAN-to-LAN/Prestige means the LAN to the Prestige LAN interface. This is always allowed,
as this is how you manage the Prestige from your local computer.
11.3.2 WAN-to-LAN rules
WAN-to-LAN rules are Internet to your local network firewall rules. The default is to block
all traffic from the Internet to your local network.
How can you forward certain WAN to LAN traffic? You may allow traffic originating from
the WAN to be forwarded to the LAN by:
• Configuring NAT port forwarding rules in the web configurator SUA Server screen or
SMT NAT menus.
• Configuring One-to-One and Many-One-to-One NAT mapping rules in the web
configurator Address Mapping screen or SMT NAT menus.