Building Secure Wireless Networks with 802 11 phần 6 ppsx

... 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 54 ... 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: Xirco...

Ngày tải lên: 14/08/2014, 14:20

... Group 45 The 802. 15 Working Group 45 The 802. 16 Working Group 46 The 802. 11 Family of Standards 46 The 802. 11 Standard Details 46 802. 11 Security 48 Operating Modes 49 Roaming 50 The 802. 11 Extensions ... Up Wireless LAN for the 802. 11 Ad−Hoc Mode 158 Summary 159 Chapter 10: Advanced 802. 11 Wireless LANs 160 High Security and Authentication−Enabled 802....

Ngày tải lên: 14/08/2014, 14:20

... this chapter. Initially, 802. 11 standard−based wireless LANs operated at 1 megabit per second (Mbps). Eventually, 802. 11b—also known as wireless fidelity, or Wi−Fi, or 802. 11 high rate, which is ... constitute a wireless LAN are examined in detail. Then wireless networks are compared with wired networks. Finally we cover the existing standards in wireless LAN technolo...

Ngày tải lên: 14/08/2014, 14:20

... include 802. 11b, 802. 11a, 802. 11g, and 802. 11e. We discuss the extensions in the order of their popularity, development status, and general acceptance. 802. 11b 802. 11b is an extension to 802. 11 that ... Offered by 802. 11b over 802. 11 The 802. 11b extension was the product of the 802. 11 task group b and was approved in 1999 .802. 11b ratifies to the original 802. 1...

Ngày tải lên: 14/08/2014, 14:20

... 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 ... the shortcomings of 802. 11 security protocols, the future of 802. 11 security, and the basic extensions to 802. 11 security that can help overcome the known security we...

Ngày tải lên: 14/08/2014, 14:20

... 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).• Software drivers for the wireless LAN ... your RG−1000 unless 154 Chapter 10: Advanced 802. 11 Wireless LANs Wireless LANs based on basic 802. 11 standard technologies, for example 802. 11b and 802. 11a, provid...

Ngày tải lên: 14/08/2014, 14:20

... Systems, make wireless LAN APs that can provide both 802. 11b and 802. 11a wireless AP services. If you already have a wireless LAN that uses 802. 11b and you want to upgrade to 802. 11a wireless LANs, ... Do Not Dial The Initial Connection. Click Next .6. Type the host name (for example, vpn.acme.com) or the IP address (for example, 111 .111 .111 .111 ) of the computer to which...

Ngày tải lên: 14/08/2014, 14:20

... level of wireless LAN security assigned to the 802. 11b wireless LAN specification. 203 Data Privacy The data in a wireless LAN is vulnerable to tampering and spoofing. An adversary within the ... enjoy wireless networking with Lucent's 2.4−GHz, IEEE 802. 11b Direct Sequence Spread Spectrum wireless Ethernet standard. No other campus of this size has such complete coverage....

Ngày tải lên: 14/08/2014, 14:20

... Based on 802. 11a Table 8 .11: Xircom Products Based on 802. 11b Table 8.12: Xircom Products Based on 802. 11a Chapter 10: Advanced 802. 11 Wireless LANs Table 10.1: A Sample Network Address Table with ... 8.2: 802. 11b Compared with 802. 11a Table 8.3: Common Ethernet Standards Table 8.4: Popular RADIUS Server Vendors Table 8.5: Major 802. 11b Products Table 8 .6: The major OR...

Ngày tải lên: 14/08/2014, 14:20

... 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 ... adapter does not work with an 802. 11a−based AP. It is important to realize that a wireless LAN that consists of 802. 11b is a totally separate LAN from one constructed us...

Ngày tải lên: 14/08/2014, 14:21