Security Issues With Dynamic Host Configuration Protocol

2128 Words Mar 23rd, 2015 9 Pages
Abstract- The paper discusses security issues with Dynamic Host Configuration Protocol (DHCP) and four different approaches proposed to secure DHCP. DHCP assigns network parameters to existing and new clients. A misconfigured client is a big security breach as the traffic from and to such client can be intercepted. The two main issues with DHCP are rogue server and Media Access Control (MAC) address spoofing. The techniques discussed in the paper attempt at solving these problems by encrypting the plain text send in DHCP, using digital signatures and key exchange algorithms to maintain data integrity and security.
1. Introduction-
Internet grew rapidly over the last few decades. This has led to increase in the size of networks and number of network devices. The network infrastructure today needs improvement and changes daily, so adding new devices to network is very essential. The traditional way of assigning network configuration to clients with the help of a network administrator is difficult. DHCP has now owned the responsibility to perform this task. DHCP has its security issues because at the time of its development internet security was not as important as dynamic allocation of the network parameters were [2]. The major security concern in DHCP is interception of plaintext messages and illegitimate client or server that compromises the network.
In section 4 of the paper, four different techniques to secure DHCP have been discussed. The first approach makes use of…
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