Netgear VPN Firewall 200 FVX538 Manual Do Utilizador

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ProSafe VPN Firewall 200 FVX538 Reference Manual
Introduction
1-3
v1.0, August 2006
Keyword Filtering. With its URL keyword filtering feature, the FVX538 prevents 
objectionable content from reaching your PCs. The firewall allows you to control access to 
Internet content by screening for keywords within Web addresses. You can configure the 
firewall to log and report attempts to access objectionable Internet sites.
Security Features
The VPN firewall is equipped with several features designed to maintain security, as described in 
this section.
PCs Hidden by NAT. NAT opens a temporary path to the Internet for requests originating 
from the local network. Requests originating from outside the LAN are discarded, preventing 
users outside the LAN from finding and directly accessing the PCs on the LAN.
Port Forwarding with NAT. Although NAT prevents Internet locations from directly 
accessing the PCs on the LAN, the firewall allows you to direct incoming traffic to specific 
PCs based on the service port number of the incoming request. You can specify forwarding of 
single ports or ranges of ports.
DMZ port. Incoming traffic from the Internet is normally discarded by the firewall unless the 
traffic is a response to one of your local computers or a service for which you have configured 
an inbound rule. Instead of discarding this traffic, you can have it forwarded to one computer 
on your network.
Autosensing Ethernet Connections with Auto Uplink
With its internal 8-port 10/100 switch, the FVX538 can connect to either a 10 Mbps standard 
Ethernet network or a 100 Mbps Fast Ethernet network. Both the LAN and WAN interfaces are 
autosensing and capable of full-duplex or half-duplex operation. 
The firewall incorporates Auto Uplink
TM
 technology. Each Ethernet port will automatically sense 
whether the Ethernet cable plugged into the port should have a ‘normal’ connection such as to a 
PC or an ‘uplink’ connection such as to a switch or hub. That port will then configure itself to the 
correct configuration. This feature also eliminates the need to worry about crossover cables, as 
Auto Uplink will accommodate either type of cable to make the right connection.
Extensive Protocol Support
The VPN firewall supports the Transmission Control Protocol/Internet Protocol (TCP/IP) and 
Routing Information Protocol (RIP). For further information about TCP/IP, refer 
to