Ieee set up a dedicated task group to create a replacement security solution. Security in mobile and wireless networks apricot tutorial perth australia 27 february, 2006. In the case of a lanbased layer 2 interconnect, the pe router will need to maintain arp entries for all of the end system addresses that are reachable beyond that interface. Strong wireless network passwords are essential for home.
This paper discusses the vulnerabilities and security issues. In this paper, we provide an overview of the security concerns introduced by wireless lans, current approaches to wireless lan security, their limitations, and the weaknesses of various band aid security solutions. Internet users in the united states are increasingly relying on cell phones to access data. Moreover, it explains the idea of wman wireless metropolitan access network and its security features. Implementation details are given for data and key exchange, network management, and interoperability issues. There are many issues regarding the security of wlans like using radio frequency rf as a medium of transmitting information and the fact that all messages are broadcasted. Wireless security 6 in this tutorial, you will be taken on a journey through different methods of wireless communication. There is light at the end of the wlan wireless lan security tunnel. To interconnect protected lan segments with insecure networks, such as the internet, special security gateways may be used. Wireless local area network wlan has been widely used in many sectors. Benefit from an alwaysavailable network that scales with your organization. Under these conditions, a malicious user could access any directories and files you have allowed for sharing.
When designing and supporting a wlan, however, you must be aware of potential implications, such as security vulnerabilities, radio signal interference, multipath propagation, and other issues. Wireless security is just an aspect of computer security. Wep is not totally secure first, lets examine what the. Wireless security presentation linkedin slideshare.
While some of them use wires and others use proprietary communications methods albeit wireless, we are going to focus on wifi and wifi security issues. Wireless local are network security wlan security is a security system designed to protect networks from the security breaches to which wireless transmissions are susceptible. Outline this paper describes some security properties of wireless local area networks. While the security problems associated with wireless networking are serious, there are steps you can take to protect yourself. In order to examine the wlan security threats, this paper will look at both active. Issue ssid association, never intended for security issue mac sent in clear, very easily spoofed published papers university of maryland, april 2001 wireless. A breach of the security of the wlan will eventually harm the security of the wired lan. Then, we will examine the four security objectives and look at each of the three categories of security solutions. Instead, network managers need to deploy layered solutions that systematically address the security issues. Wan is a commonly found networking system, but with most technology, wan systems require maintenance and it support around the clock. Wireless network security is a concern for your home network, when you use a public wifi hotspot, and for businesses that use wireless. In the case of a lan based layer 2 interconnect, the pe router will need to maintain arp entries for all of the end system addresses that are reachable beyond that interface. The openroaming solution cisco is helping to develop will allow for automatic, seamless connectivity on wifi 6 and 5g networks. Unauthorized association an aptoap association that can violate the security perimeter of.
We also illustrate lan factors for peering constructs. And, thankfully, that light is not coming from the manhattan limited. Besides all these advantages wlan are also facing major problems of security. Reposting is not permitted without express written permission. Wireless lan security chris johnson cse cisco federal. Physical access and emergency policies encompass a wide range of issues, from storage of documents and disks to control of physical access to computing resources. Local area network wlan is a choice to reckon in various sectors, including business. This paper illustrates the key concepts of security, wireless networks, and security over wireless networks. Viruses viruses are generally not a security threat to the computers on your lan although they can cause plenty of problems. Cisco dna software subscriptions power analytics and assurance across your network. Wireless network security threats and mitigationa survey. The goal of this paper is to discuss the major privacy security issues, attacks, solutions and fundamental security requirements of wireless communication. Oct 02, 2014 a firewall is a networking security tool that can be configured to block certain types of network access and data from leaving the network or being accessed from outside of the network. In this section we discuss lan security issues as they pertain to core security.
Security issues in wireless and mobile ip networks. Security problems and solutions for wireless lans white paper enabling security features, found that conniving customers were changing the prices of items they purchased. Wireless security concerns as mobile commerce and wireless internet access grow, security concerns about protecting data on wireless devices becomes an issue for businesses and consumers. Unauthorized association an aptoap association that can violate the security perimeter of the network. Pdf a wireless local area network wlan is being widely recognized as a viable. In addition, wlans installed for the benefit of an organizations internal users may not be protected by the networks perimeter defense. An overview of security and wireless communications is presented in this section. And vendor innovation took care of the rest, including band steering, ap load balancing and bandwidth management to name. This paper begins by introducing the concept of wireless lan wlan. This paper discusses the various security issues and vulnerabilities related to the ieee 802. Explore wireless lan security with free download of seminar report and ppt in pdf and doc format. The major security problem of ethernet is due to its feature that it is a broadcast system. When testing the system design of a wlan solution before vendor selection, espe. Network security solutions are loosely divided into three categories.
Due to the nearfar problem a transmitter can impact desense a receiver on a. Security risk assessment and countermeasures nwabude arinze sunday v acknowledgement i am grateful to god almighty for his grace and strength that sustained me through out the duration of this work, thereby making it a success. Passive capturing is performed by simply getting within range of a target wireless lan and then listening and capturing data. In this chapter, we will provide an overview of basic security concepts.
Wep vs wpa vs wpa2, and default ssid usage among others. Network security technologies and solutions yusuf bhaiji. Mar 31, 2015 the major security problem of ethernet is due to its feature that it is a broadcast system. Jan 03, 2001 wireless security concerns as mobile commerce and wireless internet access grow, security concerns about protecting data on wireless devices becomes an issue for businesses and consumers. A properly configured firewall is necessary for network security, and while many modems include this, its often not robust enough for business use. However, this paper only handles networks based on the ieee 802. There have been several works on wlan security since it was discovered that the 802. After you work out all the problems, you can install the wlan at. Wireless networks security threats all the interviewees commented that. This type of security is necessary because wlan signals have no physical boundary limitations, and are prone to illegitimate.
Wireless lan security seminar report, ppt, pdf for ece students. You will learn about wireless local area network wlan as most of us know it, and then go deeper into the practical aspects behind wireless security. How to discover and access wireless lans wlans is discussed and a checklist that can. Its and enterprise network services provide managed wireless services for departments utilizing the aruba wireless lan products. Other potential issues with configuration include weak passphrases, weak security deployments i. Because solutions to wlan security issues are varied and wlan standards are always evolving, the wireless lan security program is designed to provide an indepth understanding of current technologies and an overview of the pros and cons of various solutions. Get assured wireless performance with cisco dna software. By and large the common security threat remains vulnerability of wireless transmission interception and to impersonation aimed at stealing identity information and its subsequent exploitation to gain advantage on behalf of the genuine user.
Pdf analysis of security issues and their solutions in. Also explore the seminar topics paper on wireless lan security with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year 2015 2016. An indepth security analysis of the proposed architecture is presented and some. It is important to consider the link local security issues as the internet being an open network is vulnerable to be exploited by. We use cellular phones, tablets, laptops, gaming systems, and cars to do so. Unlike a wired network which requires physical access to a device, a wireless network can be targeted and exploited from a distance. The second is gaining access to a lan and its resources through hacking. Cse497b introduction to computer and network security spring 2007 professor jaeger page security mechanisms note. Wireless security is demonstrated by explaining the main points in the common security standards like 802. Wireless local area network wlan and access point ap security. The popularity gained is due to many reasons, such as ease of installation, installation flexibility, mobility, reduced costofownership, and scalability. The major attacks to network security are passive attack, active attack, distributed attack, insider attack, close.
In recent years, with the popularity of a variety of wireless devices and wireless local area network with its easy access, flexible networking, mobile data. Any information sent form one computer to another through ethernet lan, as we know that ethernet lan has different segments so, when the data is transferred it moves almost from all parts of cable and then moves towards the receiving computer. Similarly, if an employee adds a wireless interface to. Implementation and enforcement of these wireless security standards will increase the overall security of campus networks and systems. An indooroutdoor wireless network allows users to access pervasive wireless lan and wireless. The introductory section gives brief information on the wlan components and its architecture. Feng, wireless lan security issues and solutions, ieee. Common wireless network security threats pluralsight. Regardless of different benefits of wireless lans like mobility, flexibility, reduced cost of ownership and scalability, wlan also have security issues. Security not just a wlan issue a network issue treat the network as an untrusted network and secure appropriately wlan can be extremely secure no quick fixes planning and design solutions to address security are available today and will continue to evolve. International journal of computer trends and technology. Wireless lan security seminar report, ppt, pdf for ece. Wireless lan implications, problems, and solutions.
An unsecured wireless network combined with unsecured file sharing can spell disaster. There are many issues regarding the security of wlans like using radio frequency rf as a medium of transmitting information and the fact that all messages are broadcasted to wherever the coverage of that wlan can reach 12. Wireless network, wifi networking and mobility solutions. Sep 01, 2002 the first is eavesdropping, which is also known as sniffing. The first is eavesdropping, which is also known as sniffing. A firewall is a networking security tool that can be configured to block certain types of network access and data from leaving the network or being accessed from outside of the network. Secure wireless lan solutions guide complete wifi security for any network topology. Wpa, wpa2 these slides are based partly on lawrie browns slides supplied with william stallings s book cryptography and network security. Sep 30, 2010 establish wireless lan security policies. Wireless security penn state college of engineering. There has been a serious problem with security issues since the inception of wireless lan, westudied the current wireless local area network face some of the major security issues, and describes the corresponding solutions. Vm3 network and security guide honeywell scanning and mobility. Although this introduction will not cover all the aspects of both worlds, it will give a descent amount of information that allows the reader to go through the paper without the necessity of referring to other books or papers. Wireless local area networks wlans based on the wifi wireless fidelity standards are one of todays fastest growing technologies in businesses, schools, and homes, for good reasons.
However a system must be able to limit damage and recover rapidly when attacks occur. This paper discusses why many traditional approaches to network security e. So there are various solutions when any of above attacks occurs. Get more information about wireless lan security technology by visiting this link. A security gateway is an interconnecting device with at least two network interfaces. Introduction a wireless local area network is a flexible data communications system that can use either infrared or. This paper is from the sans institute reading room site. Special thanks go to my supervisor, fredrik erlandsson, for his support and guidance.
1501 466 1600 1234 1335 104 1003 765 549 617 919 1235 1065 1524 1585 407 1603 829 1359 440 787 506 77 1141 4 988 298 1270 794 250