Building Secure Wireless Networks with 802.11 phần 9 ppt
building secure wireless networks with 802.11
... 20 Mbps (to be compatible with 802.11b,
802.11g needs to operate in DSSS in only up to 11 Mbps).
The 802.11g devices would directly compete with the 802.11a devices, as 802.11g provides the
backward ... communicate
over dialup connect in TCP/IP−based networks such as the Internet or corporate Intranets. PAP is a
81
Table of Contents
Building Secure Wireless Networks with 802...
Handbook of Wireless Networks and Mobile Computing phần 2 ppt
... hundreds of papers on the subject. The re-
71
Handbook of Wireless Networks and Mobile Computing, Edited by Ivan Stojmenovic
Copyright â 20 02 John Wiley & Sons, Inc.
ISBNs: 0-471-419 02- 8 (Paper); ... Communications, 18, 7, 125 4– 126 0, 20 00.
6. U. Black, Mobile and Wireless Networks, Upper Saddle River, NJ: Prentice Hall, 1996.
7. U. Black, Second Generatio...
802.11® Wireless Networks: The Definitive Guide phần 5 pptx
... lower band
(5. 15- 5. 25 GHz)
40 mW
(2 .5 mW/MHz)
36
40
44
48
5. 180
5. 200
5. 220
5. 240
U-NII mid-band
(5. 25- 5. 35 GHz)
200 mW
(12 .5 mW/MHz)
52
56
60
64
5. 260
5. 280
5. 300
5. 320
... band
(5. 7 25- 5.8 25 GHz)
800 mW
(50 mW/MHz)
149
153
157
161
5. 7 45
5. 7 65
5. 7 85
5. 8 05
[a]
The allowed power is the maximum output power usin...
802.11® Wireless Networks: The Definitive Guide phần 6 ppt
... classify them any further. Brave, stout-hearted
readers can order the specification from the PCMCIA and use the dump_cis tool
on Linux to read the CIS of inserted cards.
The CIS assists the host ... script on the wireless station to
send traffic periodically to prevent the association from timing out.
13.3 .6. 6 "MAC initialization failure, result=xxx"
The fi...
Building Secure Wireless Networks with 802.11 phần 1 ppsx
... Advanced 802 .11 Wireless LANs 16 0
High Security and Authentication−Enabled 802 .11 Wireless LANs 16 0
The 802.1X Standard 16 0
Virtual Private Network for Wireless LANs 16 1
Building a Secure Wireless ... 50
The 802 .11 Extensions 50
802 .11 b 50
802 .11 a 52
802 .11 g 53
802 .11 Shortcomings 54
Wireless Standards Comparison 55
Summary 55
Chapter 4: Is Wireless...
Building Secure Wireless Networks with 802.11 phần 2 potx
... bytes= 32 time<10ms TTL= 128
Reply from 1 92. 168.0 .2: bytes= 32 time<10ms TTL= 128
Reply from 1 92. 168.0 .2: bytes= 32 time<10ms TTL= 128
Reply from 1 92. 168.0 .2: bytes= 32 time<10ms TTL= 128
6. ... "ping 1 92. 168.0 .2& quot; from the computer with IP
address 1 92. 198.0.3. The program should reply with:
C:\>ping 1 92. 168.0 .2
Pinging 1 92. 168.0 .2 w...
Building Secure Wireless Networks with 802.11 phần 3 docx
... incurs. In addition, 802.11a networks are incompatible with the
802.11b networks due to the difference in the radio frequency band used by 802.11a (802.11b uses
2.4 GHz whereas 802.11a uses 5 GHz), ... 802.11a like fast Ethernet is compared with
Ethernet. Because 802.11a operates in 5 GHz, it can coexist with 802.11b networks without causing
any interference. 802.11a is being used...
Building Secure Wireless Networks with 802.11 phần 4 pot
... available wireless LAN technologies. The main
security issue with wireless networks, especially radio−frequency−based networks (for example,
802.11 based networks) , is that the wireless networks ... used to secure wireless LANs. We
talk about security requirements of wireless LANs, the IEEE 802.11 security architecture, the
shortcomings of 802.11 security protocols,...
Building Secure Wireless Networks with 802.11 phần 6 ppsx
... of the 802.11b standard with the 802.11a.
Table 8.2: 802.11b Compared with 802.11a
TECHNOLOGY STANDARD MAXIMUM SPEED FREQUENCY BAND GEOGRRAPHIC RANGE
802.11b 11 Mbps 2.4 GHz 300 meters
802.11a ... Intel
branded wireless LAN products based on the IEEE 802.11 standards.
802.11b Products
Table 8.11 shows the major Xircom products based on 802.11b.
Table 8.11: Xircom Products Based on 802...
Building Secure Wireless Networks with 802.11 phần 7 ppt
... a bit more secure. To use
802.1X in an 802.11 wireless LAN, you must use the following components:
802.11a− or 802.11b−compliant wireless LAN adapter(s).ã
Software drivers for the wireless LAN ... computers
installed with a wireless LAN adapter can communicate with each other, forming an ad−hoc LAN, if
they are configured for ad−hoc mode operation. When comparing 802.11 ad−h...
Building Secure Wireless Networks with 802.11 phần 8 pdf
... Systems,
make wireless LAN APs that can provide both 80 2.11b and 80 2.11a wireless AP services. If
you already have a wireless LAN that uses 80 2.11b and you want to upgrade to 80 2.11a
wireless LANs, ... antenna.
ã
183
Now that we are familiar with the two advanced security technologies, the 80 2.1X and the VPN
technologies, let's use them to build a secure wirele...
Building Secure Wireless Networks with 802.11 phần 9 ppt
... came to be known generally as the
Wireless Initiative. Phase One of Wireless Andrew was released in 199 7.
The Initial Wireless Andrew
Wireless Andrew consists of wireless LAN access points that ... path to new wireless technologies as they develop.
In 199 8, Hyland hired a New Jersey company called InvisiNet to install the workstations. The first
system was only a 2 MB system. In...
Building Secure Wireless Networks with 802.11 phần 10 pptx
... Based on 802.11a
Chapter 10: Advanced 802.11 Wireless LANs
Table 10. 1: A Sample Network Address Table with One Entry
Chapter 11: Troubleshooting Wireless LANs
Table 11.1: The Effect of Building ... 802.11b
Table 8.8: Linksys Wireless Products Based on 802.11b
Table 8.9: NetGear Products Based on 802.11b
Table 8 .10: NETGEAR Products Based on 802.11a
Table 8.11: Xircom Products...
building secure wireless networks with 802.11 phần 5 pptx
... and guides you through
building secure wireless LANs using the 802.11 standard. We have divided the process of building a
wireless LAN into three separate steps: planning a wireless LAN, purchasing ... LAN Adapters
Wireless LAN adapters or wireless network interface cards (wireless NICs) are devices that
individuals use with their wireless computing devices to participa...
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