extending wireless network range with a repeater

... rates of GSM/GPRS and UMTS ● WiMAX (2008 - ) WiMAX as mobile standard has its origins in an IEEE-based microwave standard that dates back to the year 2001 In its mobile variant it uses OFDMA ... Trang 1Wireless Network Optimizationwith Wireshark Gunnar Heine / INACON Sharkfest in Palo Alto Trang 2The Wireless Environment2 Trang 3Some Details about the different Access Networks● GERAN ... is based on W-CDMA It is predominantly a US-based standard and has its origins in IS-95 Support for cdma2000 is declining with major operators migrating to UMTS and LTE Trang 4Why can Wireshark

Ngày tải lên: 18/10/2015, 23:57

... academic areas ofthe campus At this time, only three academic areas are addressed.Theplanned network must be easy to adapt as these areas of study increase orchange For example, the Math and Computer ... softwaredevelopment Trang 14Q:What are my choices in alternative handheld devices for a retailapplication?A:There are many handheld devices on the market Any industrial held device that is capable ... youpurchase one hundred more to go in the handheld devices An Orinoco Range Extender antenna is purchased for each radioattached to an access point.The Range Extender is compatible with theAP-1000 and

Ngày tải lên: 14/08/2014, 14:20

... amount of raw data passed through a link ornetwork and includes both overhead signaling data as well as userdata.Throughput refers to the actual amount of user data passedthrough the link or network ... marketplace and a whole new range of household, business, and entertainment servicesbecome available with expanded broadband access, a home network willbecome a must for many households.With a ... for, plans, designs,and implements a wireless home network As a part of these processes,Jan learns more about the strengths and weaknesses of wireless networks,and about the costs and advantages

Ngày tải lên: 14/08/2014, 14:20

... capabilities.The raw data rate available is up to a 3.75kilometer distance with 10 Mbps ; There are no interference or licensing issues with optical wireless,and its data rate and distance capabilities are ... individual or device, typically involving a10m radius.This is referred to as a personal operating space (POS).WPANs relate to the 802.15 standard ; WPANs are characterized by short transmission ranges. ... investigation, analysis, and design beforepurchasing any wireless networking solutions ; The advantages of wireless are that it offers you mobility and isavailable in locations where a wired

Ngày tải lên: 14/08/2014, 14:20

... for aFederal Agency in the Washington, D.C., area He has a wide range ofinformation technology experience, including Web applications anddatabase development, system administration, and network ... as a Network Systems Engineer, bringing his knowl-edge of the desktop platform and a general understanding of a broad range of technologies in areas such as remote access, ATM, frame relay, and ... limitation may not apply to you. You should always use reasonable care, including backup and other appropriate precautions, when working with computers, networks, data, and files. Syngress Media®,

Ngày tải lên: 14/08/2014, 18:22

... to as WPA2 WPA2 uses AES asthe encryption standard, whereas WPA uses the TKIP standard.This is not to say thatWPA is not secure but to acknowledge that wireless security is ever changing.WPA2 also ... Broadcast Setting a Password on the Airport Because the Airport is in a default configuration, it is wise to set a password on theAirport to disable the ability of anyone making unauthorized changes ... Wireless Router with Four-Port Switch Although Linksys has a sizable share of the home access point market, D-Link alsohas a large market share D-Link products are sold at most big computer and

Ngày tải lên: 14/08/2014, 18:22

... the APand the wired network ■ Client software and hardware that supports 802.1X and EAP-TLS authentication and the use of dynamic WEP keys Fortunately, justabout any wireless adapter that allows ... network, rather than have dial-in access policies defined on eachRRAS server A primary advantage of doing this is easier administration and central-ized logging of dial-in access Installing an IAS server ... by William A Arbaugh and Arunesh Mishra, An Initial Security Analysis of the IEEE 802.1x Standard, the authors discuss how one-way authentication and other weaknesses made 802.1X vulnerable to

Ngày tải lên: 14/08/2014, 18:22

... popular scanners is called NMAP NMAP is a free network scanneravailable at www.nmap.org website Detecting a Rogue Access Point with a Port Scanner Figure 4.15 shows a typical user LAN with a large ... scalability and central man-agement and greatly improves the overall security against rogue access points, with its automated process The WLSE can also use triangulation to calculate the physical location ... mutual authentication in EAP is Light Extensible Authentication Protocol (LEAP) and EAP-Transport Layer Security (EAP-TLS) In LEAP, authentication and challenges are derived from usernames and passwords

Ngày tải lên: 14/08/2014, 18:22

... the advantages of separating LANs with VLANs includes the creation of separate broadcast domains A broadcast domain assures performance and scalability and prevents users from different logical ... traffic and benefits of broadcast domain segmentation in wired networks, we will take a closer look at broadcast seg-mentation in wireless networks In a wired network, VLANs are used to separate ... integration ability with wired networks allows for scalablewireless solutions.This chapter covered the basic fundamentals of wired and wirelessVLANs The creation of a VLAN allows you to logically separate

Ngày tải lên: 14/08/2014, 18:22

... Committee 802.1 LAN/MAN Bridging and Management 802.1 is the base stan-dard for LAN/MAN Bridging, LAN architecture, LAN management, and protocol layers above the MAC and LLC layers Some examples would ... home network industry, I would sug-gest contacting Parks Associates at www.parksassociates.com.The Continental Automated Buildings Association (CABA) at www.caba.org is another good Frequently Asked ... hardware has out of the box support for WPA2 Usually, support is available for existing wireless cards using a firmware upgrade or patch, available at the manufacturer’s website Developing WLANs

Ngày tải lên: 14/08/2014, 18:22

... Interference, signal strength and denial of service(DoS) attacks can all dramatically affect your availability In the past, for an attacker toperform a denial of service attack against your internal network, ... points externally where the signal was available Special attention should have been paid to problematic areas, such as cafes, roadways or parking lots These areas are problematic because it is ... haveneeded to gain access to it, not always a trivial task Now, however, an attacker with agrudge against your organization needs only to know that a wireless network is present in order to attack.We’ll

Ngày tải lên: 14/08/2014, 18:22

... 128-bit RC4 Also, MAC address-based access control table schemes are used Q:What are the ranges of wireless devices outdoors? A:Directional antennas can provide a range of up to 16 miles Q:What routing ... shoe department, abaseball/soccer department, a golf department, a seasonal department, and a sun-glasses department Generally, the most active of all the first-floor departments is theshoe department, ... 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 coverage in a floor.

Ngày tải lên: 14/08/2014, 18:22

... She already has a cordless phone and is planning to purchase a laptop PC and perhaps a second printer However, a quick call to her broadband provider has caused her to question the financial feasi-bility ... supplies a dynamic (DHCP) address rather than a static IP address She therefore needs to instruct her firewall to Obtain an IP address automatically Jan also knows she wants to set up her firewall as a ... signal with up to 8 high-quality 2.4 GHz voice channels and all the Custom Local Area Signaling Service (CLASS) calling features like call waiting and caller ID.The HomeRF stan-dard also uses a

Ngày tải lên: 14/08/2014, 18:22

... are ready to start our attack against the WLAN First, we fire up Aireplay and configure it to capture an ARP packet that we can inject into the network and generate the traffic necessary to capture ... for associa-tion with the Meoffer network by issuing the iwconfigcommand with no parame-ters An association was not made It would appear that our target has taken a step to restrict access We make ... stay current and understand the tools you need and what tools areavailable One advantage of Auditor for penetration testers is that it incorporates alarge selection of tools, and with each update,

Ngày tải lên: 14/08/2014, 18:22

... genetic analyses The analysis of variance (ANOVA) model Y = μ + L + ε was used to partition variation in male aggressive behavior and transcript abundance between lines (L, random) and the variation ... [18] (Additional data file 6); analysis of modules of correlated transcripts associated with aggressive behavior (Additional data file 7); pleiotropic genes affecting aggression (Additional data ... adult tissues, based on data from FlyAtlas [36] Acc Gland, accessory gland Although many of the QTTs lack annotation, we can infer potential functions based on the characterized genes that fall

Ngày tải lên: 14/08/2014, 21:20

... Z Tian, GB Giannakis, H Kobayashi, AF Molisch, HV Poor, Z Sahinoglu, Sahinoglu, Localization via ultra-wideband radios: a look at positioning aspects for future sensor networks. IEEE Signal Process ... define A i ={j| reference node j can communicate with target i} and B i = {j|j ≠ i, target j can communicate with target i} as the sets of all reference nodes and targets that can communicate with ... information is a vital requirement for the network to be able to perform in practical applications. Due to drawbacks of using GPS in practical networks, mainly cost and lack of access to satellite...

Ngày tải lên: 20/06/2014, 22:20

... on Wireless 18 Apply Wireless Technologies to Horizontal Applications Along with the many vertical markets and applications, you can apply wireless technologies to horizontal applications, meaning ... Service as a Network Systems Engineer bringing his knowledge of the desktop platform and a general understanding of a broad range of technologies in areas such as remote access, ATM, frame relay, and ... site and get accurate information regarding the status of a package. Using Wireless for Public Safety Public safety applications got their start with radio communications for maritime endeavors and other...

Ngày tải lên: 16/10/2013, 13:15

... create the DNS namespace design. Move the appropriate DNS namespaces to the appropriate company domains (Use only namespaces that apply. Use namespaces only once.) A: Corp NAmerica LAmerica corp.hansonrothers.com ... have access to the Internet. Each regional headquarters will contain a domain controller that is configured as a replication bridgehead server. Each Regional administrator team will manage all ... each location, you need to investigate the connectivity options available in that area. ã Assess net available bandwidth and latency issues. Bandwidth is the measure of the amount of data that...

Ngày tải lên: 21/12/2013, 04:19

... information of a new seizure is available. Thus the system can adaptively update all related parameters automatically based on available seizure information. From Figure 1, the hidden variable’s value ... state space. A local linearization technique is applied to nonlinear equations and an approximate linear equation is obtained in (16). A series of values of hidden variable x can be obtained based ... limited intracranial EEG data, it has a reliable performance for all six patients including preictal, interictal, and postictal transition data. Application of our method here focuses on the same type...

Ngày tải lên: 21/06/2014, 20:20

... mem- brane), small arrow heads (immature viruses); (D): arrow (plasma membrane), large arrow heads (Golgi apparatus), small arrow (cell associated vesicle); (E): arrow (plasma membrane), arrow ... and Rec 2 infected Vero cells (C-F). (A) : arrow (plasma membrane), arrow heads (IMVs); (B): arrow (plasma membrane), arrow heads (CEVs); (C): arrow (plasma membrane), large arrow head (trans-Golgi ... arrow heads (CEVs); (F): arrow (plasma mem- brane), large arrow heads (EEVs), small arrow head (plasma membrane projection). The same results were obtained with MVA-HANP and Rec 3 (data not shown)....

Ngày tải lên: 12/08/2014, 04:21