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Vulnerability of Wireless LANsIntrusion and Radio Interference |
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WLAN Vulnerable to Intrusion If you are using a WLAN between
computers, or to wireless network router for Internet access and computer
resource sharing, please take steps to guarantee your privacy, prevent theft
of identify and theft of service. >>
Wireless routers allows anyone to connect ... A typical
"off-the-shelf" IEEE-802.11 wireless network system can have a radio frequency (RF) coverage range of
several hundred feet. Using high-gain
directional antennas, the interception range can be increased much
further. This RF range is by design --
it is intended to allow reception within a typical house or building where
users are co-located. Without proper security
enforcement, outsiders can compromise the network connection and have access
to all data and resource on the network.
In addition, someone could be intentionally, or even accidentally,
using your Internet service by connecting to your wireless router. This theft of service is becoming more and
more common, especially in dense urban areas.
An outsider may be using your cable/DSL Internet service freely. >>
Wireless equipment is "made simple" to install ... Often, consumers purchase WLAN
equipment and install it without taking any security precautions. This is very common since the equipment will
work right out of the box -- default settings allow any computer to
automatically connect. If you have WLAN equipment in
use, we strongly recommend you review the product documentation and take
steps to keep intruders out. Read the
manuals that came with the wireless router, network
interface card (NIC) and/or built-in wireless computer
equipment. Your private information in
the wrong hands can be damaging. If
you require assistance, LeveL10.us can help. If you suspect a problem,
LeveL10.us can diagnose and correct it.
We can also test your system to make sure it is performing to its
fullest and hardened against malicious users attempting access. >>>
WLAN Vulnerable to Radio Interference With the increasing number of
wireless devices in use, radio frequency
interference (RFI) is a growing concern. Many wireless devices are competing for a
small section of allocated RF spectrum.
These devices may also be physically close to each other -- increasing
RFI problems even though they are operating on different channels. >>
Interference from phones and microwave ovens ... If your network drops out often
or performance is poor, this can be caused by other radio transmissions,
including other neighboring WLANs, and devices such as microwave ovens and cordless
phones. The potential for radio
interference increases as more RF devices are used and when users are closer
together. RFI problems will cause WLAN
dropouts to occur even though you have good signal strength from your
wireless router. Source of
interference can be difficult to detect.
For example, cordless phones share the same RF spectrum and have more
powerful signal strength than 802.11 WLANs.
Even though different frequency channels are used, their power can
drown out the WLAN channels that are several MHz away. Additionally, the phone base station sends
status signals to the remote station at regular intervals, even though the
phone is not in use. Microwave ovens, though well
shielded, radiate RF leakage power levels much greater than the 802.11 WLAN
devices. Always check the WLAN and other
radio device product documentation for steps to avoid RFI problems. >>>
LeveL10.us Provides Technical Support Write us at support@level10.us, or call support triage at 703-527-7614 for more information, provide assistance with diagnosing problems and answer any questions you may have. We are professionals in this domain, and would enjoy talking to you. |
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Explanation of Survey
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