Netgear FVX538 FVX538 Reference Manual - Page 21

Security, Autosensing Ethernet Connections with Auto Uplink, The firewall incorporates Auto Uplink

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Reference Manual for the ProSafe VPN Firewall 200 FVX538 • 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 The FVX538 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 UplinkTM 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. Introduction 2-3 January 2005

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Reference Manual for the ProSafe VPN Firewall 200 FVX538
Introduction
2-3
January 2005
•
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
The FVX538 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.