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https://www.sampleassignment.com/Wireless Network & SecurityThis task requires to analysis large-scale wireless network. For collecting data about accesspoints as well preparing technical reports about technology used, channels, data rates, networktypes, interference with other networks, security protocols and so on; the WLAN sniffing toolnamed Acrylic is used.The chosen tool, Acrylic Wi-Fi Heatmaps is used to survey locations for providing wirelessnetwork coverage. For analyzing actual Wi-Fi network coverage and performance by Wi-Fiinfrastructure measurement, this tool is very necessary. The collected data is very much requiredfor identifying, diagnosising and quantifying all types of issues for wireless communicationsunder present network configurations.1)Before starting any wireless network analysis task, creating a new site survey project or open anexisting project is needed. For creating a new site survey project for the purpose of Wi-Fiinfrastructural analaysis and detecting possible improvements, the screenshot is given below,-The above figure shows the hierarchy of locations and sub-locations for a shopping center whereground floor (main floor) is the Supermarket and Mall, different departmental stores are located
https://www.sampleassignment.com/at first floor as well as cinema and restaurants are in the second floor. The Acrylic Wi-FiHeatmaps is used to sort the locations into sub-locations and to cover different locationsincluding indoor and outdoor areas. In the above figure, 3 different locations are defines in eachfloor where name and description are also given. After creating the locations for performing sitesurveys on each of them, the present location is first selected.At the time of Scanning, the data is captured from the wireless medium by Acrylic Wi-FiHeatmaps. With the help of this tool, all detected access points are visualized. In the case of sitesurvey on Monitor Mode, how many clients are connected with these access points are alsoshown in the following screenshot.The above window is very much helpful to know the status of all Wi-Fi devices. Each row showsa particular device where each column shows the device information including SSID (Service
https://www.sampleassignment.com/Set Identifier), # (number of devices connected to the network), MAC address, Signal Strength,Signal-to-Noise Ratio, security options, etc.2)In the selected area, 0-Main Floor; the access points are shown where the networks areidentified at the time of scanning.By using the rectangle selection pointer, it is possible to visualize the location of an access point.In the case of surveyed area, Acrylic Wi-Fi Heatmaps is used for geopositioning andtriangulating the access points. This tool analyzes the detected access points as well comparingresults that are performed against all scans on other locations. This tool is able for detectingaccess points that are belonging to the surveyed area or not.
https://www.sampleassignment.com/In the current location, all access points are displayed in a table arranged in a sorted wayaccording to the network name. In the case of locating an access point to a different location,then the Other Location Element should be categorized. If an access point is not defined in aparticular location then it can be appear under this element as well as cannot be viewed in theactive view. Manual Location: To locate an access point manually, this option is used. When anaccess point is detected in a different location by a stronger signal level, the access pointcan be located manually in the selected location.At the time of scanning, the detection of access points are automatically located if the valuesfor signal strengths are higher than the minimum signal strength threshold values that arepredefined. But, there are some manual options to modify or adjust the access point associationin a project’s physical locations. In this case, the access point is to be selected that is required formodifying.
https://www.sampleassignment.com/After clicking the button on Manual Locate, the location of access points is to be indicated byclicking on the satellite view or blueprint view. Automatic Location: This option is used for locating an access point automatically.Acrylic Wi-Fi Heatmaps is used to process the data collection for selected access points.In this case, the geopositioning and triangulation algorithms are used for establishing theaccess point’s most probable location. By selection this option, the manually selectedaccess points are overridden.
https://www.sampleassignment.com/ Remove an Access Point: This option is used to remove the location of an access point.After removing, the access points would be included in other Location group but thisaccess point is not visible until it is assigned to another location.3) (a) & (b)Observations from Site Survey Results: Routes: The list of locations are shown as below when scanning in a particular surveyarea. The screenshot is,-
https://www.sampleassignment.com/At the time of scanning a location, data collection points are created. The following technicalinformation about different types of Scan is obtained,.1. Manual: From the blueprint or satellite map, these points are manually selected at thetime of scanning. But, ensure that the scan should be Normal or Continuous Mode.2. Calculated: When the site survey is done in continuous mode, these points are created.The measurements between two points are done by the Acrylic Wi-Fi Heatmaps andthese intermediate points are responsible for referencing these measurements.3. GPS: At the time of GPS enabled scan, these points are automatically generated by theAcrylic tool. At the time of GPS-enabled scanning, the following screenshot isachieved,-
https://www.sampleassignment.com/4. Embedded: At the time of Embedded GPS enabled scan, these types of points areautomatically generated by Acrylic Wi-Fi Heatmaps. But, in this case the MS Windowsgeopositioning service is used. Naturally, this mode is required only for GPS enableddevices like tablets.5. Options: At the time of selecting a point, all available options like Move point, Deletepoint, etc are shown at the bottom context panel. For example, to gather technicalinformation about a point, after clicking on the Move Survey Point button then blueprintor satellite map’s point position is to be selected. This is shown in the followingscreenshot,-
https://www.sampleassignment.com/Report generation:For finding report about observation, first need to select those access points from where report isto be generated among all the collected information. The scans and locations must be included.The screenshot is shown as below,-
https://www.sampleassignment.com/For selecting information the following steps are required,Step 1: After selecting location and within those locations, the scans would be included in thereport as below screenshot.
https://www.sampleassignment.com/Step 2: In this step, the access points are selected that must be included in the report as belowscreenshot,-
https://www.sampleassignment.com/For Managing the Wi-Fi, the following recommendations are considered.1. Update MAC Address: This option is very useful for managing the wireless devicedatabase that is required to identify each manufacture of the device by MAC address.This database is known as Organizationally Unique Identifier (OUI) that may be used by thedevice manufacturers but respective manufacturers many not be related with some devices.
https://www.sampleassignment.com/2. The configuration section of Acrylic Wi-Fi Heatmaps is used to manage user interfaceaspects in the following manner.3) (C) Evaluation:(i) Dual bands: In the case of Wi-Fi network connections, some issues are identified likespeed is a constraint, channel saturation, etc. To resolve these issues, the dual band isused. In the above case, the disconnection of network may be happened due to using2.4GHz spectrum. The dual band is capable for connecting 2.4GHz wireless adapters.So, no channel saturation is found for using the dual band. The advantages of dualbands are as follows, Resolve signal interference: The dual band has the ability for switching frequenciesfrom 2.4GHz to 5GHz for avoiding traffic congestion. So, less utilized 5GHz frequencycan be enjoyable with the help of dual-band routers.
https://www.sampleassignment.com/ Compatibility: The dual band routers are capable to work with different wirelessnetworking devices. 2.4GHz and 5GHz both are supported by dual band router to workwith any network adapter.Customization of Wireless Network Settings: The dual band network has the ability forcustomization wireless network settings as per needs.(ii) Security implications:After conducting the site survey with NetSpot WiFi Site Survey tools, the rogue APs can bedetected. After site surveying, unauthorized workstations would be detected. By organizinglaptops and PDAs with wireless adapters along with MAC address, user and OS information;WLAN access control is possible. This data is very much required for misplacing or stolenWLAN adapters. From this data, close-by APs and stations that are not belonging to the networkare also identified. By surveying public area in all deeper levels; the MAC address,SSID(network name) as well as channel would be recorded. This data is very much helpful foravoiding cross-inference as well as offering alert for false-positive intrusion. Therecommendation is to get APs with high-grade antennas and strong signal so that their narrowfocus must provide better security for the signal as well as avoiding to leak outside. Thefollowing steps are necessary for Wi-Fi network security.Step 1: Unique and strong password should be given to the routers.Step 2: The resources are to be protected by evaluating threats and risks. In this case, encryptiontechnique in wireless AP as well as suitable cryptographic checksum would be used.Step 3: The topology should be chosen correctly so that placement of devices must enhancewireless LAN security. The placement of APs must be restricted within the network.Step 4: For network protection from eavesdropping attack, the WEP (Wired Equivalent Privacy) wouldbe implemented. In this case, information transmitting over the air would encrypted so that hackers cannot decrypt it properly.Step 5: The VPN can be used for WLAN security. In the case of high-speed wireless LAN, toencrypt more data VPN is very necessary.Step 6: The wireless Signal Range can be controlled. In the case of small office, the mode ofWiFi router can be changed to 802.11g instead of 802.11b or 802.11n otherwise a different WiFi channel can be used. This technique obviously implements better security for Wi-Fi channels.(iii) Other Aspects:
https://www.sampleassignment.com/SSID: It is a service set identifier and also know as the network name. In the case of scanningwith Acrylic Wi-Fi Heatmaps tools, the network name is hidden and shown as red. This networkname is inferred by the software.Vendor: The Wi-Fi device uses the vendor name which is the manufacturer brand name of thenetwork. This information can be collected from the MAC address but it cannot be edited.
named Acrylic is used. The chosen tool, Acrylic Wi-Fi Heatmaps is used to survey locations for providing wireless network coverage. For analyzing actual Wi-Fi network coverage and performance by Wi-Fi infrastructure measurement, this tool is very necessary. The collected data is very much required
