extending wireless network range with second router

Ngày tải lên: 20/06/2014, 21:20

Ngày tải lên: 26/10/2014, 14:42

... cả các thiết bị wireless mới được chứng nhận bởi Wi-Fi Alliance Wireless VLANs Personal Wireless Security  Bảo mật wireless điển hình được chia thành 2 loại:  Personal wireless security: ... một thành phần của mạng wireless. WPA Enterprise Security TKIP Encryption Personal Wireless Security Lịch sử của WIFI  Sau thời gian ngắn phát hành 2 chuẩn mạng wireless 802.11b và 802.11a, ... về việc làm thế nào để công nghệ wireless mới này được chấp nhận trên thị trường  Một nhómcác nhà sản xuất thiết bị và phần mềm wireless được thành lập tên là Wireless Ethernet Compatibility...

Ngày tải lên: 22/01/2013, 23:02

Ngày tải lên: 07/08/2013, 10:26

Ngày tải lên: 01/09/2013, 11:12

... quality of the voice/ Wireless Networks362 Figure 13.9 DCF state machine [18] 13 Simulation of Wireless Network Systems This chapter deals with simulation of wireless network systems. We introduce ... machine. We have simulated a data combined with voice network and data combined with video network operating in a WLAN environment. The network has 20 wireless stations transfer- ring data and ... broadcast network where many nodes are within radio range of each other. In WLANs, all nodes within the radio broadcasting range of a particular node can hear any messages sent by that node. If a networking...

Ngày tải lên: 29/09/2013, 21:20

... Computers and Networks 9 Inventing Cell Phones 11 Exploring Present Applications for Wireless 12 Applying Wireless Technology to Vertical Markets 13 Using Wireless in Delivery Services 14 Using Wireless ... 14 Using Wireless in the Financial World 15 Using Wireless in the Retail World 15 Using Wireless in Monitoring Applications 16 Applying Wireless Technology to Horizontal Applications 16 Using Wireless ... Messaging 17 Using Wireless for Mapping 17 Using Wireless for Web Surfing 17 Exploring This Book on Wireless 18 Apply Wireless Technologies to Horizontal Applications Along with the many vertical...

Ngày tải lên: 16/10/2013, 13:15

... Server Creates a generic socket with socket Binds to a known address with bind Tell system to watch for incoming connections with listen Waits for a connection with accept or select ☞ Ä Ä Ä Ä ... the buffer is full. ☞ Ä Ä Slide 25 Using UDP With UDP, it is not normally required that the client connect to the server. Sending data is performed with send instead of syswrite. send, unlike ... (cont.) Slide 42 Threaded server All client connections are handled within one process. Each client has its own thread within the server process. use Thread::Pool; use Symbol qw(gensym); ...

Ngày tải lên: 21/12/2013, 04:19

... enabled network, routers keep their respective routing tables updated by communicating with neighbor routers. Approximately every 30 seconds, RIP routers broadcast their list of reachable networks. ... communications and other network operations. The network infrastructure includes: ã Network hardware, such as cabling, routers, switches, and host computers ã Hardware and software protocols ã Network services ... hardware protocols are designed to work with specific kinds of physical networks. The three most commonly used network topologies are: 1. Backbone-based networks. Backbone-based networks consist of multiple...

Ngày tải lên: 21/12/2013, 04:19

... 19 www.syngress.com Figure 1.6 Wireless Access Wireless Access Point Cabled LAN User Server Wireless LAN User Access is Limited to Desk Range of Access: Wireless LANs: Up to 100 Meters 3G Wireless: Several ... Between Access Points Wireless Device Wireless Access Point #2 Wireless Access Point #1 Direction of Movement Credential Reaffiliation with New Wireless Access Point 182_HPwireless_01.qxd 2/6/02 ... project itself. With wireless networking, all that is required to create a new network is radio wave access between end nodes and/or between an end node and a wireless AP hub within the vicinity...

Ngày tải lên: 21/12/2013, 06:16

Ngày tải lên: 01/01/2014, 16:48

... network operators delivering voice, video and data services over wireless, wireline and cable networks. Learn more at www.adc.com/professionalservices 10/05 ã 101535AE Assessment Tool for Wireless ... Assessment Tool for Wireless Operators 3 www.adc.com ã +1-952-938-8080 • 1-800-366-3891 Professional Services Assessment Tool for Wireless Network Operators Power systems? Push-to-talk? Routers? Signal ... week? Wireless Expertise Does the professional services provider have demonstrated experience in wireless networks? Does the professional services provider understand the business drivers in the wireless...

Ngày tải lên: 24/01/2014, 11:20

... 5 a network manager can use either an open or a closed network. In an open network, anyone is permitted to join the network. In a closed network, only those clients with knowledge of the network ... following: a) MN visits new network b) New network obtains the address of old network c) New network requests context transfer to old network d) Old network transfers context of MN to new network e) After ... relationships between two networks. 1) Reactive Context Transfer: With a reactive context trans- fer, the context is delivered from the old network to the new network after the mobile node visits the new network. ...

Ngày tải lên: 14/02/2014, 16:20

... Spectrum Technology 47 Uses of Spread Spectrum 48 Wireless Local Area Networks 48 Wireless Personal Area Networks 49 Wireless Metropolitan Area Networks 49 FCC Specifications 49 Frequency Hopping ... popular networking certification programs leave off: wireless LANs. Your study of wireless networking will help you bring together two fascinating worlds of technology, because wireless networks ... facilities benefit greatly from wireless LANs. Some valuable uses of wireless LANs within these facilities include doctors using wireless PDAs to connect to the networks and mobile diagnostic...

Ngày tải lên: 17/02/2014, 15:20

... coordinates that are simply the distances from a host to some special network nodes. We propose the second mechanism, called Global Network Positioning (GNP), which is based on absolute coordinates ... net- works [3][4], and overlay network multicast [1][2] which can greatly benefit from network distance information. Specifically, we propose coordinates-based approaches for network distance prediction ... two nearest clusters, starting with 19 probe clus- ters, until we are left with clusters. In addition, to observe how each prediction mechanism re- acts to a wide range of unintelligent i-node...

Ngày tải lên: 18/02/2014, 01:20

Ngày tải lên: 18/02/2014, 04:20

... Snifng with Wireshark ã Chapter 6 6:5 ethereal_ch06.qxd 11/8/06 5:07 PM Page 5 www.syngress.com Wireless Snifng with Wireshark ã Chapter 6 6:35 Representing Wireless Frame Types When assessing a wireless ... manipulating the wireless card. First, let’s identify the wireless driver interface name by running the wireless card configuration utility iwconfig with no parameters: $ iwconfig eth0 no wireless extensions. lo ... take a broader look at your wireless network and assess traffic for all of the APs in your capture file. Indeed, many of the problems in wireless networking have to do with roaming between APs, which forces...

Ngày tải lên: 22/02/2014, 21:20

... Wireless Network Watcher - Phần mềm phát hiện câu trộm Wifi Wireless Network Watcher - Phần mềm phát hiện câu trộm Wifi sẽ giúp bạn ... nhanh chóng phát hiện và khắc phục tình trạng này, bạn có thể nhờ cậy Wireless Network Watcher. Link download: Wireless Network Watcher Tải xong, bạn chỉ việc giải nén và chạy file WNetWatcher.exe ... "chùa" wifi của bạn. Bài viết dưới đây sẽ hướng dẫn bạn sử dụng phần mềm tiện ích này. Khi router Wi-Fi không được cài đặt mật khẩu đủ mạnh, hacker có thể truy cập mạng của bạn và khiến...

Ngày tải lên: 26/02/2014, 16:20

... sight 22 Power 24 Physics in the real world 26 Network Design 27 Designing the physical network 51 802.11 wireless networks 54 Mesh networking with OLSR 56 Estimating capacity 65 Traffic optimization ... network and be retransmitted on other networks. Routers perform this function on a network by having at least two network interfaces, one on each of the networks to be interconnected. Nodes ... (http://seattlewireless.net/~mattw/) provided technical re- view and copy edit support. Matt is the founder of SeattleWireless (http://seattlewireless.net/) and is an evangelist for FreeNetworks worldwide. About...

Ngày tải lên: 28/02/2014, 17:10

... blocked with the underlying firewall. Network access is maintained by a Layer-2 bridge without an IP address bound to the network adapters. This allows the Honeypot to be connected to any network ... Improving network security with Honeypots - Midi-Tower with Intel Pentium III – 500 MHz, 392 MB main memory, 8,4 GB hard disk space and three network adapters - Mini-Tower with Intel Celeron ... logically to the production network and allows the Honeynet to be of the same address range. figure 2-2 - Honeynet setup Page 7 Improving network security with Honeypots Page 30 - a...

Ngày tải lên: 05/03/2014, 21:20