wireless local area network security pdf

... IEEE802.11b IEEE802.11g XU THẾ PHÁT TRIỂN CỦA WLAN TỔNG QUAN Mạng LAN không dây viết tắt WLAN (Wireless Local Area Network) , mạng dùng để kết nối hai hay nhiều máy tính với mà không sử dụng dây dẫn WLAN ... Institute of Electrical and Electronic Engineers (IEEE) phác thảo chuẩn 802.11 cho WLANs (Wireless Local Area Networking) WLAN mạng cục không dây cho phép kết nối không dây ethernet hoạt động theo ... 802.20 29 Tăng trưởng kích thước ứng dụng Traditional Networking: i.e NIC AP Router Multi-media: i.e.Video/ Audio adaptor Telecom: i.e.Hot Spots, Wireless VoIP WLAN Technology Foundation PC OEM: i.e.Mini...

Ngày tải lên: 01/09/2013, 10:30

Ngày tải lên: 01/08/2014, 07:21

... Computer ISP Wireless network interface card Access point (AP) Wireless Network Interface Card • Network interface card (NIC) – Allows a computer to be connected to a network • Wireless NIC – ... Applications • Wireless networks are increasing in popularity • Installing cabling is inconvenient and very expensive – Wireless networks solve this problem • With a wireless network – Multiple ... of wireless clients and an AP • Extended Service Set (ESS) – Two or more BSS wireless networks installed in same area – Provides users with uninterrupted mobile access to the network • All wireless...

Ngày tải lên: 13/09/2012, 10:52

... thành: • Mạng cục ( Local Area Network - LAN ) • Mạng diện rộng (Wide Area Network - WAN) • Mạng thành phố ( Metropolita Area Network - MAN) • Mạng toàn cầu ( Global Area Network - GAN) • Mạng ... • Mạng toàn cầu ( Global Area Network - GAN) • Mạng cá nhân ( Personal Area Network - PAN) • Mạng Lưu trữ ( Storage Area Network - SAN) Trang NGUYỄN ĐÌNH CÔNG – 36CLTH 1010 2.1 MẠNG CỤC BỘ (LAN): ... PHẦN I LÝ THUYẾT Trang NGUYỄN ĐÌNH CÔNG – 36CLTH 22 CHƯƠNG I LÝ THUYẾT VỀ MẠNG LAN (LOCAL AREA NETWORK) I / CÁC KIẾN TRÚC MẠNG : Hình dạng mạng cục thể qua cấu trúc hay hình học đường dây...

Ngày tải lên: 25/04/2013, 11:58

... potential intruder needs to Wireless Local Area Networks 243 possess the network s access code in order to join the network Encryption of traffic can be used to increase security, which, however, ... to provide security improvements 9.7 Summary In this chapter we cover the area of Wireless Local Area Networks by focusing on a number of issues: † WLAN topologies The two types of wireless LAN ... Evaluation of the IEEE 802.11 Wireless Local Area Network Protocol, Masters Thesis, Department of Electrical and Computer Engineering, University of Arizona, 1996 272 Wireless Networks [12] Kahol A.,...

Ngày tải lên: 29/09/2013, 21:20

... dụng chung liệu tài nguyên khác mạng nh máy in, máy fax, nh rẻ dùng riêng lẻ Một mạng cục (Local Area Network LAN) trợ giúp mạng máy tính cá nhân với kho liệu riêng chia thiết bị phần mềm Một...

Ngày tải lên: 18/12/2013, 12:32

... Ðể cài đặt TCP/IP cho từng máy (đối với Win 9x) bạn bạn tiến hành: Vào My  computer ­­> Control Panel ­­> Network ­­> nếu tại đây bạn đã thấy có giao  thức TCP/IP rồi thì bạn khỏi cần add thêm nếu chưa có thì bạn hãy click chọn  ... khác đều kết nối ra được internet thì bạn nên thiết lập gán IP theo dạng tĩnh.  Ðể thực hiện bạn vào My computer ­­> Control Panel ­­> Network ­­> nếu tại  đây bạn đã thấy có giao thức TCP/IP rồi thì bạn khỏi cần add thêm nếu chưa ...

Ngày tải lên: 30/12/2013, 22:06

... Networking Where Does Security Fit in? Network Access Layer Security Internetwork Layer Security Access Control Lists Host-to-Host Layer Security IPSec Process Application Layer Security PGP S-HTTP ... Firewall Management VPN and IPSec Security Management Security Policy Management Security Policy Definition Security Policy Enforcement Security Policy Auditing Network Security Deployment Options ... Introduction to IP Network Security Solutions in this chapter: s What Role Does Security Play in a Network? s The Fundamentals of Networking s Where Does Security Fit in? s Cisco IP Security Hardware...

Ngày tải lên: 24/01/2014, 10:20

Ngày tải lên: 17/02/2014, 15:30

... across the network This system enables the administrator to correlate network traffic with the running processes on his monitored machines 2.2 Graph-based approaches for network monitoring In network ... excellent for monitoring a small local network, its limit to display approximately 100 hosts at a time might cause scalability issues when monitoring medium or large size networks As already mentioned, ... changes in traffic of hosts as one of the most essential tasks in the domains of network monitoring and network security We propose a new visualization metaphor for monitoring time-referenced...

Ngày tải lên: 05/03/2014, 23:20

... that link will suffer larger delays On the contrary, in the network security game we study here, if a user increases his investment, the security level of other users will improve In this sense, ... that a number of service providers (SP) build networks which are interconnected If a SP invests to upgrade her own network, the performance of the whole network improves and may bring more revenue ... VII C ONCLUSIONS We have studied the equilibrium performance of the network security game Our model explicitly considered the network topology, players’ different cost functions, and their relative...

Ngày tải lên: 05/03/2014, 23:20

... frames Hubs and Switches (diag) Wireless LANs „ „ „ „ „ Mobility Flexibility Hard to wire areas Reduced cost of wireless systems Improved performance of wireless systems Wireless LAN Applications „ ... LAN Applications (2) „ High speed office networks ƒ Desktop image processing ƒ High capacity local storage „ Backbone LANs ƒ ƒ ƒ ƒ Interconnect low speed local LANs Reliability Capacity Cost LAN ... Applications (1) „ Personal computer LANs ƒ Low cost ƒ Limited data rate „ Back end networks and storage area networks ƒ Interconnecting large systems (mainframes and large storage devices) ‚ ‚...

Ngày tải lên: 06/03/2014, 09:21

... in network protocols and services Mechanisms to protect networks Security tools Overview of This Course TCP/IP Suite Vulnerabilities and solutions Security protocols built on top of TCP/IP Security ... to test and protect networks Network security theory and practice In homework Explore TCP/IP vulnerabilities in detail by exploiting them using CASL Learn to analyze a TCP/IP network for vulnerabilities ... computer network to eavesdrop on computers in the network Sniffing requires physical access to network medium It is a passive activity, in that sniffing doesn’t introduce new packets into network...

Ngày tải lên: 14/03/2014, 22:20

... and proper security design (security policy) of the network will be discussed in the section on countermeasures following this section 5.5.2 Network Security Clause 24 BACnet’s Network Security ... the network itself can be configured in various ways to suit the security needs of various size networks Perhaps a single packet filtering router is sufficient for a small network with minimal security, ... (IDS) can be implemented to increase network security There are two primary types of IDS: network based and host-based The network based system acts similarly to a network level firewall It cannot...

Ngày tải lên: 14/03/2014, 22:20

... Networking Where Does Security Fit in? Network Access Layer Security Internetwork Layer Security Access Control Lists Host-to-Host Layer Security IPSec Process Application Layer Security PGP S-HTTP ... Firewall Management VPN and IPSec Security Management Security Policy Management Security Policy Definition Security Policy Enforcement Security Policy Auditing Network Security Deployment Options ... Introduction to IP Network Security Solutions in this chapter: s What Role Does Security Play in a Network? s The Fundamentals of Networking s Where Does Security Fit in? s Cisco IP Security Hardware...

Ngày tải lên: 24/03/2014, 04:20

Ngày tải lên: 29/03/2014, 14:20

Ngày tải lên: 14/06/2014, 15:15

Ngày tải lên: 19/06/2014, 08:20