Abstract:-Wireless networks are a general term to refer to various types of networks that communicate without the need of wire links. Wireless networks can be largely categorized into wireless ad-hoc networks and cellular networks structures. The need for security on any network is apparent. Wireless network/Internet access technology is being increasingly installed in both office and public environment. Wireless network provide many advantages but it also joined with new security threads and alters the organization’s overall information security risk profile when considering a network with a Wireless Access Point, or WAP”, available, new security. Because wireless is broadcast in nature, anyone within range of a wireless card can intercept the packets being sent out without interrupting the flow of data between wireless card and base station. We present a structure to help managers understand and assess the various threats associated with the use of wireless Network. We also discuss various solutions for countering the threats.
Keywords: Wireless Network, Data Flow control, Wireless Ad-hoc network, cellular Network, WAP
I. INTRODUCTION
A wireless network is open data communications system, which uses wireless media such as radio frequency technology to transmit and receive data over the air, minimizing the need for wired connections. Wireless networks are used to augment rather than replace wired networks and are most commonly used to provide last few stages of
The main difference of a WiFi to Token ring and Ethernet networks is that it does not require a physical media from the source to the receiver to create a network and establish a connection, although WiFi would not compete with speeds of data transfer of an Ethernet. A WiFi connection is made by using a wireless adapter(that converts digital information to radio waves and back with antenna) to create a hotspots that allow access to internet service. WiFi technology is using 802.11 networking standards (802.11a, 802.11b, 802.11n etc. ) that will depend on needs for the user. In wireless networks there are two logical typologies that are use, a star and point-to-point (devices connect directly to each other and do not need access point device to communicate), in general WiFi speed is on average 20Mbps, however it can vary on many factor like distance between users and source or media radio waves has to travel through on the way to the user and
Assessment 3 – Assignment 1
Student Name: John Matanisiga
Student ID No: S11124727
1. The difference between these wireless encryption is that WEP is wired equivalent privacy, a default procedure for wired security networks, WPA is an upgrade from WEP, and it is a wireless protected access to networks, whereas WPA2 is modernized into a more secure Wi-Fi from WPA.
2. With Static addressing, a computer (or other device) is configured to always use the same IP address, whereas dynamic addressing, the IP address can change periodically and is managed by a centralized network service.
WPA2 –Wi-Fi protected access version 2
This security was made because of the 802.11i wireless security standard. WPA2 is very similar to WPA but it uses AES – advanced encryption standard to encrypt. AES has a 128 bit key whereas DES – data encryption standard which was used before AES has a 64bit key. 64bit keys take a lot less time to break than 128bit key.
Encryption Security:
Hard drive encryption: Without hard drive encryption if a hard drive becomes lost all the information on the hard drive would be viewable by plugging it into another computer. Particularly with a peer to peer network all the other computers on the network will be available if the hacker can access one.
Wireless encryption: Wireless encryption is not as secure as a physical network, especially; if that wireless encryption is going to be the main way that strangers will be connecting to the network. All wireless protocols need to be at least WPA2 because of how many tools are out there and older models can be cracked.
Exercises #3: There are many classification methods that can be used with IDPS’s systems. The main point of this system is to detect hostile actions. The first classification is based on the place where ID systems can be placed and the second one is based on analysis of the technique used. These ID systems can be classified into three main groups starting with Host Based Intrusion Detection System (HIPS), then Network Behavior Analysis (NBA), Network Based Intrusion Detection System (NIPS), and Wireless Intrusion Prevention System (WIPS). The WIPS it analysis the traffic of wireless network, NBA examines traffic to identify threats that generate unusual traffic flow, HIPS monitor single host for suspicious activity, NIPS it analyzes the traffic of entire network.
Parrish,
We have a green light.
One additional requirement, is that risk assessment team works with MAT to complete the following:
1) Work in tandem with Fred to "develop a criteria / written documentation to assess Wi-Fi access points (WAP) devices so when the risk assessors go out to perform their assessments that validation understands what to ask for and how to validate these devices for CS security to include "best practice" mitigation hardening for these devices.
2) Find out where all these Wi-Fi WAPs are included in the packages. Our database could be of use to them. (E.g. FARs comes to my mind as I know they use WAP) In additional, have them find out who else uses WAPs?
6. True or False: NetStumbler can check for wireless networks and their signal strength, review which channels are being used, and then compare competing networks to monitor interference.
7. Wireless networks were identified by drawing
This will allow us to create a secure connection to the network over the internet. With this design the campus will have a much more reliable network to its
1. Traffic control: As the data communication is the most energy-consuming part of the wireless sensor networks by decreasing the amount of traffic, energy can be saved. To distribute traffic effectively from a central node to other nodes, investigations are still needed in the network.
2. Preserve the traffic load balancing:
• ICMP; is one of the main rules of the internet protocol suite. It is used by system devices, like router, to send error messages showing, for example, that a demanded service is not offered or that a crowd or router could not be touched.
• DHCP; Dynamic host configuration protocol is a customer server rules that repeatedly delivers an internet rules (IP) address and other linked arrangement information such as the subnet mask and avoidance entry.
• Bluetooth; Bluetooth is a wireless communication technology that lets people to usefully connect their plans with other policies “and “the character of the technology is developing to not only allow devices to talk with one another, but actually allow the all-in-one communication between devices, native requests and the cloud.”
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5. METHODOLOGY
5.1 Secure Multipath Routing Protocols in Wireless Sensor
Networks Till date many routing protocols have been proposed for wireless sensor networks, but only few of them consider the problem of security [4] and most of them are developed without any security concern. So in this section we focus at selected multipath routing protocols in order to cope with the various attacks. For avoiding intruders attacks in HWSN various methods and algorithms are implemented out of that Professor Hamid Al-Hamadi and Professor Ing-Ray Chen:
With widespread use of internet services, the network scale is expanding on daily basis and as the network scale increases so will the scale of security threats which can be applied to system connected to the network. Viruses and Intrusions are amongst most common threats that affects computer systems. Virus attacks can be controlled by proper antivirus installation and by keeping the antivirus up to date. Whereas any unauthorized access in the computer system by an intruder can be termed as Intrusion and controlled by IDS. Intruders can be grouped into two major categories which are external and internal Intruders.
The wireless router however, wireless router is a device that will perform the same function of a router but also includes the functions of a wireless access point. This means that the wireless router will allows a laptop, phone or tablet to wirelessly connect to the home network and access the internet as
When asked what a network is, I usually think about the internet or my phone’s network. It had never occurred to me to go further in depth on the subject. In order to fully understand what a network is we must look into what all networks have in common. All networks whether they are a broadcast, a computer, or a business network (the list goes on) all share common traits. There exists a hierarchy within each network and the more connections one has, the better.
