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Introduction, What are wireless network connections, Securing your wireless network – Philips SNB6500 User Manual

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SNB6500

Thank you for purchasing the Philips Wireless Router. This Philips Wireless Router is
a WiFi (IEEE 802.11b/g) compatible device. It fully supports high data rates up to 108
Mbps with automatic fallback to lower speeds for secure operation at lower data
rates in even the most difficult of wireless environments.

In this manual we will expand on how to install, configure, and use your Philips
Wireless Router.

This chapter will give you background information on wireless networks and their
security in general.

What are wireless network connections?

Your Wireless Router uses a wireless protocol (called IEEE 802.11b/g or WiFi) to
communicate with other network computers by means of radio transmissions. WiFi
radio waves travel outwards from the antenna in all directions, and can transmit
through walls and floors. Wireless transmissions can theoretically reach up to
450 meters in an open environment and reach speeds of up to 108 Megabits per
second (Mbps) at close range. However, the actual network range and data
throughput rate will be less, depending on the wireless link quality.

Factors determining your network range and network
speed

The environment: Radio signals can travel further outside of buildings, and if the
wireless components are in direct line of sight to one another. Putting wireless
components in high places helps avoid physical obstacles and provides better
coverage.

Building construction such as metal framing and concrete or masonry walls and
floors will reduce radio signal strength. Avoid putting wireless components next
to walls and other large, solid objects; or next to large metal objects such as
computers, monitors, and appliances.

Wireless signal range, speed, and strength can be affected by interference from
neighbouring wireless networks and devices. Electro-magnetic devices such as
televisions, radios, microwave ovens, and cordless phones, especially those with
frequencies in the 2.4 GHz range, may also interfere with wireless transmission.

Standing or sitting too close to wireless equipment can also affect radio signal
quality.

Adjusting the antenna: Do not place antennas next to large pieces of metal,
because this might cause interference.

Securing your wireless network

As wireless computer networks use radio signals, it is possible for other wireless
network devices outside your immediate area to pick up the wireless signals and
either connect to your network or to capture the network traffic.Therefore, you
should always enable the Wired Equivalent Privacy (WEP) or WiFi Protected Access
(WPA/WPA2) network encryption key to help prevent unauthorised connections
or the possibility of eavesdroppers listening in on your network traffic.

For an example of how to secure your network, please see the chapter on Securing
your wireless network
.

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Introduction