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Introduction
13
ProSafe Wireless-N 8-Port Gigabit VPN Firewall FVS318N
Security Features
The wireless VPN firewall is equipped with several features designed to maintain security:
• Com
puters 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
computers on the LAN.
• Port forwarding with NA
T. Although NAT prevents Internet locations from directly
accessing the computers on the LAN, the wireless VPN firewall allows you to direct
incoming traffic to specific computers based on the service port number of the incoming
request.
• DMZ port. Incoming tra
ffic from the Internet is usually discarded by the wireless VPN
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 use
the dedicated demilitarized zone (DMZ) port to forward the traffic to one computer on your
network.
Autosensing Ethernet Connections with Auto Uplink
With its internal eight-port 10/100/1000 Mbps switch and 10/100/1000 WAN port, the wireless
VPN firewall can connect to either a 10 Mbps standard Ethernet network, a 100 Mbps Fast
Ethernet network, or a 1000 Mbps Gigabit Ethernet network. The LAN and WAN interfaces
are autosensing and capable of full-duplex or half-duplex operation.
The wireless VPN firewall incorporates Auto Uplink
TM
technology. Each Ethernet port
automatically senses whether the Ethernet cable plugged into the port should have a normal
connection such as to a computer or an uplink connection such as to a switch or hub. That
port then configures itself correctly. This feature eliminates the need for you to think about
crossover cables, as Auto Uplink accommodates either type of cable to make the right
connection.
Extensive Protocol Support
The wireless VPN firewall supports the Transmission Control Protocol/Internet Protocol
(TCP/IP) and Routing Information Protocol (RIP). The wireless VPN firewall provides the
following protocol support:
• I
P address sharing by NAT. The wireless VPN firewall allows many networked
computers to share an Internet account using only a single IP address, which might be
statically or dynamically assigned by your Internet service provider (ISP). This technique,
known as Network Address Translation (NAT), allows the use of an inexpensive
single-user ISP account.
• Automatic configuration of att
ached computers by DHCP. The wireless VPN firewall
dynamically assigns network configuration information, including IP, gateway, and
Domain
Name Server (DNS) addresses, to attached computers on the LAN using the