Since the inception of IEEE 802.11i in 2004, users and IT administrators have been able to improve the security of their wireless networks by taking advantage of protocols like CCMP, an algorithm designed to provide both authentication and encryption. With CCMP, wireless networks can be secured with 128-bit AES encryption, provided by the Counter Mode component of CCMP. The CBC-MAC mode component provides the authentication mechanism. Although the security provided by 802.11i is a significant improvement to 802.11 networks, the security only applies to the data frames and does not provide any security over the management frames. In an 802.11 network, the data frame is what carries the protocols and data from higher layers. For example, a data frame might contain a JPEG image or JavaScript from a web page that the user is browsing. Whereas, 802.11 management frames allow the WiFi stations to establish and maintain communications. For example, the management frames might carry configuration information about the type of wireless device that’s in use on the network, as well as its configurations. Since management frames are unencrypted and can reveal critical pieces of information to a hacker, such as details about the types of wireless devices on the network as well as its configurations, it’s important to be aware of the different types of wireless attacks that a hacker can carry out against your wireless network. Although it is not heavily used in North American
One of the very good utilities of the hospitals network is the availability of the wireless access on the ward level, this will insure instant connectivity to the hospitals network from the small mobile devices such as laptops or other Wi-Fi based medical devices such as the new cardiograph devices which shares data with the database servers through wireless connection. These wireless devices depending on the diagram specifications are in 5 gigahertz frequency which are not compatible with every laptop computer, a recommendation to replace them with 2.4 gigahertz frequency devices are more efficient in order to allow laptops to access the network. A special attention is needed in the security of these wireless access points by connecting them to a server like RAS server to authenticate the personnel accessing the network wirelessly before allowing the devices to use the network. This is very important practice to prevent a destructive intrusion into the network.
In this modern day and age of computing, networks are a huge part of IT. It is important now more than ever that data sent over any network, whether it be a LAN (Local Area Network) or WAN (Wide Area Network; The Internet) is kept safe, private (when required) and uninterrupted in
Privacy: In a wireless network all the devices are able to hear data traffic within their ranges which can be a threat to the security of the link. IEEE 802.11 counters this problem by offering a privacy service option that raises the security level of the 802.11 network to that of a wired network.
In general, wireless routers control access to their management interface by using the hypertext transport protocol (HTTP) as the default authentication protocol. In other words, when you connect to your wireless router from a web browser (typically http://192.168.1.1), and then submit your login credentials, the HTTP protocol is used to transmit your login credentials to the router. Because HTTP does not provide encryption, your login credentials are sent to the router over the air in clear-text. In this case, an attacker eavesdropping on your WLAN would be able to capture this information and use it to access the router as an administrator. Once your router is compromised an attacker can then use it to stage attacks such as man-in-the-middle (MITM), modify unencrypted data, or even send users to evil twin websites.
Wireless security in 802.11 is less robust and has many security flaws that can be exploited by an attacker. Security best practice for wireless networks depends on a defense in depth strategy, with five control layers:
To improve security, the Wi-Fi uses various built-in WEP encryption technologies to prevent attacks from
Outline a wireless network and technology that you use regularly. The WLANs which are derived from the IEEE 802.11 standards, and marketed under the Wi-Fi trademark name. The WLANs security is neither forthright/candid nor simple, and it is continuously varying. Even though, as WLAN increase client output, they also expose the networks to a new group of potential hackers. With the present inherent security weakness of the 802.11 standard, all companies, small, medium or large, need to find out their security conditions derived from the applications using the WLAN. The standards also provide requirements for high-speed networks that support most modern-day applications. What sorts of security issues do
Wireless attacks have becoming a more common security issue when it comes to networks. Attacks can get a lot of information that is being sent across a network and use to commit crimes in other networks. Every wireless network is vulnerable to attacks and it is the important that all the necessary security measures are taken so as to prevent the mess these attacks can cause. These attacks are normally carried out to target information that is being shared through the networks. It is therefore very important to know of such attacks so you will be able to identify the attack when it happens.
Guidelines: It’s always best to introduce a paper to the reader. It sets the tone and provides an overview of what will be covered and what the goals are.
Wi-Fi Protected Access 2, the follow on security method to WPA for wireless networks that provides stronger data protection and network access control. It provides enterprise and consumer Wi-Fi users with a high level of assurance that only authorized users can access their wireless networks. Based on the IEEE 802.11i standard, WPA2 provides government grade security by implementing the National Institute of Standards and Technology (NIST) FIPS 140-2 compliant AES encryption algorithm and 802.1x-based authentication.
For security on the network we will use the 802.1x this provide port security and provide port based network access control as well as authenticated network access control. Using the 802.1x can increase security by providing support for authentication, accounting, user identification and dynamic key management. This level of security will also be able to set allow and deny network for connectivity and also control VLAN access and many other traffic policies.
The concepts of wireless network security consist of commitment of cyber security and maintaining security based on the latest development and exploits against the network K.W. Ross, J. K. (2012). Wireless Network Security is based on the principles of cryptography, message integrity, authentication, securing e-mails, securing TCP connections: SSL, securing Network layer: IPsec, securing wirelsess: LANs, securing the operational security structure, such as the firewalls and the IDS K.W. Ross, J. K. (2012). This security
Wireless media access will be protected using WPA2 security with AES 256 encryption and a pre-shared key to prevent eaves dropping.
Network security has changed significantly over the past years. There is more and more data to monitor and analyze in order to detect the activity of your data and systems. Securing a network has many variables. Password authentication, network access, patches, anti-virus protection, intrusion detection, firewall and network monitoring tools are just a few of the things you can do to protect yourself.
Wireless networking hardware requires the use of underlying technology that deals with radio frequencies as well as data transmission. The most widely used standard is 802.11 produced by the Institute of Electrical and Electronic Engineers (IEEE). This is a standard defining all aspects of Radio Frequency Wireless networking