Linksys WRVS4400N - Manual (Page 9)

1 Chapter 1: Introduction
Welcome
Wireless-N Gigabit Security Router with VPN
Chapter 1: Introduction
Welcome
Thank you for choosing the Wireless-N Gigabit Security Router with VPN. The Wireless-N Gigabit Security Router
with VPN is an advanced Internet-sharing network solution for your small business needs. The Router features a
built-in 4-Port full-duplex 10/100/1000 Ethernet switch to connect four PCs directly, or you can connect more
hubs and switches to create as big a network as you need. Like any wireless router, it lets multiple computers in
your office share an Internet connection through both wired and wireless connections. It can also be used as an
intranet router to aggregate traffic to a company backbone network.
The Router has a built-in access point that supports the latest 802.11n draft specification by IEEE. It also supports
802.11g and 802.11b clients in a mixed environment. The access point can support an 11n data rate of up to 300
Mbps. Besides having a higher data rate, 802.11n technology also promises longer coverage by using multiple
antennas to transmit and receive data streams in different directions. Users are encouraged to upgrade their
firmware through www.linksys.com when 802.11n specification is finalized by IEEE to ensure compatibility with
all the wireless-N devices.
The Wireless-N Gigabit Security Router with VPN is equipped with advanced security technologies like Intrusion
Prevention System (IPS), Stateful Packet Inspection (SPI) Firewall, IP based Access List (IP ACL), and Network
Address Port Translation (NAPT, also called NAT as a more generic term). These technologies work together by
providing self-defensive strategy. Malicious attack traffic is identified, classified, and stopped in real time while
passing through the Router. Users are encouraged to update their IPS signature file to stay current on stopping
malicious worms. The SPI Firewall provides deep packet inspection to analyze packets in network layer (IP) and
transport layer (TCP, UDP) to block illegal packet transactions. Users can also use IP based ACL to limit traffic to a
specific source, destination and protocol. NAPT allows users to open specific TCP/UDP port numbers to the
Internet to provide limited service while minimizing harmful traffic at the same time.
The Virtual Private Network (VPN) capability is another security feature that creates encrypted “tunnels” through
the Internet, allowing up to five remote offices and five traveling users to securely connect into your office
network from off-site. Users connecting through a VPN tunnel are attached to your company's network with
secure access to files, e-mail, and your intranet as if they were in the building. You can also use the VPN
capability to allow users on your small office network to securely connect out to a corporate network. The QoS
features provide consistent voice and video quality throughout your business.
This user guide will give you all the information you need to connect, set up, and configure your Router.
Ethernet: a network protocol that specifies
how data is placed on and retrieved from a
common transmission medium.