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... authenticate a device or user prior to using a physical port on a switch. Figure 4. 12
shows three workstations that are able to communicate on the wired network, and a
rogue access point that is not.As ... logs the incident. It can generate an SNMP trap -to- management
station alerting the administrator of a violation. It can also send a syslog message and
increase the viol...
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... interpreted at a
later date.
Monitoring applications in use today include NASA listening to space for radio
signals, and receiving pictures and data relayed from probes; weather satellites moni-
toring ... the weather patterns; and geologists using radio waves to gather information
on earthquakes.
Applying Wireless
Technology to Horizontal Applications
Along with the many vertica...
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... who the anticipated end
users are, and what their anticipated applications and traffic
patterns are.
■
Operations, Management, Provisioning, and Administration
Requirements These identify how the ... distinct channels within that wireless
topology. Similarly, adjacent channel spacing and active channel separation play an
important role when planning and deploying a wireless network....
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... OFDM allows data rates of 6, 9, 12, 18,
24, 36, 48 , and 54 Mbps.
In addition to speed enhancements, 802.11g hardware is backward compatible
with 802.11b hardware.The backward compatibility feature ... you
can easily uncloak the SSID and authenticate to the access point.
As mentioned earlier in the station services section, the AP also can authenticate
a wireless device against a...
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... signal strength and denial of service
(DoS) attacks can all dramatically affect your availability. In the past, for an attacker to
perform a denial of service attack against your internal network, ... likely an attacker can safely snoop
on your network. Safely, in this case, means that an attacker doesn’t need to worry
about being seen in an unusual place with a laptop. For example,...
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...
http://hostap.epitest.fi/wpa_supplicant/. Download
the file wpa_supplicant-0 .4. 9.tar.gz to your local host. Open a command prompt
and change to the directory that contains the installation package. Untar ... connect to a WPA encrypted net-
work is to use the wpa_supplicant open-source application.The wpa_supplicant is
installed as a daemon that runs as a background process. I...
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... 5 gigabyte hard drive, a
high-gain patch antenna, and a battery large enough to run the drop box for two
days.The front of box contained a Plexiglas cutout that allowed the patch antenna to
point ... security
measure that you should take. Any attacker with a “default” configuration
profile is able to associate with an access point that has a default SSID.
Assigning a unique SS...
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... until an employee can stock the merchandise.The
warehouse also contains the company office, where the administrators run the store’s
accounting software and track employee database information.As ... media access control (MAC) addresses on the data port.
Designing & Planning…
Other Antenna and Access Point Bridge Placements
There are several methods of placing antennas to have full cover...
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... can be deployed with wireless net-
works, there are ways to attack many of them. Vulnerabilities associated with WEP,
WPA, and LEAP are well known. Although there are tools to automate these attacks,
to ... wireless networks are deployed in a manner that can allow an
attacker (or a penetration tester) to bypass the security mechanisms of the VPN.
Attacks
Although several diffe...
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... 340 – 343
infrastructure BSS, 235
infrastructure network, 258
An Initial Security Analysis of the IEEE 802.1x
Standard (Arbaugh and Mishra), 76
INMARSAT (International Maritime Satellite
Organization), ... job a bit easier since we can
send a deauthentication flood and force these clients to reassociate to the network,
allowing us to capture the four-way EAPOL handshake .To acco...