Netgear FVS318N 사용자 설명서

Port triggering allows some applications running on a LAN network to be available to external 
applications that would otherwise be partially blocked by the firewall. Using the port triggering 
feature requires that you know the port numbers used by the application. Without port 
triggering, the response from the external application would be treated as a new connection 
request rather than a response to a request from the LAN network. As such, it would be 
handled in accordance with the inbound port forwarding rules, and most likely would be 
blocked. For the procedure about how to configure port triggering, see 

on page 190.

The demilitarized zone (DMZ) is a network that, by default, has fewer firewall restrictions 
when compared to the LAN. The DMZ can be used to host servers (such as a web server, 
FTP server, or email server) and provide public access to them. The eighth LAN port on the 
wireless VPN firewall (the rightmost LAN port) can be dedicated as a hardware DMZ port to 
safely provide services to the Internet without compromising security on your LAN. By 
default, the DMZ port and both inbound and outbound DMZ traffic are disabled. Enabling the 
DMZ port and allowing traffic to and from the DMZ increases the traffic through the WAN 
ports.

For information about how to enable the DMZ port, see 

on page 85. For the procedures about how to configure DMZ traffic 

on page 145.

Specifying an exposed host allows you to set up a computer or server that is available to 
anyone on the Internet for services that you have not yet defined. For an example of how to 
set up an exposed host, see 

The wireless VPN firewall supports site-to-site IPSec VPN tunnels, dedicated SSL VPN 
tunnels, and L2TP tunnels. Each tunnel requires extensive processing for encryption and 
authentication, thereby increasing traffic through the WAN ports.

For information about IPSec VPN and L2TP tunnels, see 

. For information about SSL VPN tunnels,