Security Issues With Dynamic Host Configuration Protocol

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

The most reliable secured process has an endless relation between hardware and software communicator. There are many VoIP services that are been coming into the existing market for the users to make cheaper calls which would be useful for everyone like Fruing, Truphone, Vopium. There are two types of security linked or associated with the IP. There are certain ip key Exchange, which has unique key generator for protocol exchange and budget management. It has the features reliable communication of communication between two unique devices which initiates an encryption useful algorithm, a key based authentication method, and extracted group theory information.

As hacking and attack in the personal network connections is increasing day by day, it is needed to adopt a technology that will protect the network and have the facilities to stay connected

The Dynamic Host Control Protocol automatically assigns IP addresses to hosts on a network as they request them. DHCP packets also include information like DNS server addresses, domain names, and default gateways.

To overcome the problems mentioned above we can use the concept of authentication servers. These authentication servers are used to define the VLAN membership with the help of the user id rather than the older methods where MAC addresses or IP addresses are used. This greatly enhances the integration levels with the network operating system and provides more flexibility. The most valued advantage of the authentication servers is that the VLAN which the user uses can be carried anywhere without any respect to the workstation or

This will benefit me while generating a security strategy for the Network and its hardware.

Ans: Dynamic Host Configuration Protocol (DHCP) is a network protocol that enables a server to automatically assign an IP address to a computer from a defined range of numbers configured for a given network.

Security is the heart of internetworking. The world has moved from an Internet of implicit trust to an Internet of pervasive distrust. In network security, no packet can be trusted; all packets must earn that trust through a network device’s ability to inspect and enforce policy. Clear text (unencrypted data) services represent a great weakness in networks. Clear text services transmit all information or packets, including user names and passwords, in unencrypted format. Services such as file transfer protocol (FTP), email, telnet and basic HTTP authentication all transmit communications in clear text. A hacker with a sniffer could easily capture user names and passwords from the network without anyone’s knowledge and gain administrator access to the system. Clear text services should be avoided; instead secure services that encrypt communications, such as Secure Shell (SSH) and Secure Socket Layer (SSL), should be used. The use of routers and switches will allow for network segmentation and help defend against sniffing

Security is almost certainly the most difficult aspect of a network to perfect. It is important to have the correct procedures and components in place to make certain network security is being accounted for and addressed on any given network. The journal, “Future Generation Computer Systems” elaborates on this necessity for an information system. “Future Generation Computer Systems”, this component of a network is discussed thoroughly. “Essentially securing an Information System (IS), involves identifying unique threats and challenges which need to be addressed by implementing the appropriate countermeasures” (Dimitrios Zissis, Dimitrios Lekkas, 2012). This was achieved through configuring access lists as well as CHAP configuration on the routers connecting to the edge

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

The last phase is DHCP Acknowledgement. During this transmission, the client’ message is accepted by the DHCP server and the IP address and configuration are provided. DHCP protocol requires extra adjustment to be safe. There is the Option 82, which is like a tattoo on the information sent from client to DHCP server. This information is attached to the packet and allowed the device to recognize the message and retransmitted by the DHCP server. Both client and server, need to be configured for this safe feature effectiveness (Juniper, 2017).

The new WLAN network will be protected by multiple firewalls, IPS, IDS, and a file integrity system.

Abstract -This paper addresses the internal and the external security challenges in organizations that implements wireless networks. Distributed security is designed to provide a more secure data communication among faculty members, staff and students. A description of the technique used to protect and keep PC 's up and running is illustrated with applications.

EAP was originally created as an extension to PPP to allow for the development of arbitrary network access authentication methods. With PPP authentication protocols such as Challenge Handshake Authentication Protocol (CHAP), Microsoft Challenge Handshake Authentication Protocol (MS-CHAP), and MS-CHAP version 2 (MS-CHAP v2), a specific authentication mechanism is chosen during the link establishment phase. During the authentication phase, the negotiated authentication protocol allows the exchange of information about the credentials of the connecting client. The authentication protocol is a fixed series of messages sent in a specific order.