Investigating DHCP and DNS Protocols Using Wireshark
Journal Title: IOSR Journals (IOSR Journal of Computer Engineering) - Year 2016, Vol 18, Issue 3
Abstract
For different computers to communicate on the same network or on different networks they need to know one another’s IP address or MAC address. Involving the IP address and MAC address has led to a challenging task for a network analyst to secure the communication. There are various ways to mitigate the attacks in application, transport and network layers of a network. Mitigating the attacks in data link layer is a challenging task for a network analyst as adequate security is not assigned to a data link layer. DHCP and DNS are the most widely used in host configuration and they work in data link layer. Mostly these protocols are vulnerable to number of attacks like in DHCP the attacks are DHCP Starvation attack and Rogue DHCP attackwhile in DNS the attacks are DNS Hijacking Attack and DNS Cache Poisoning Attack. These protocols have been investigated in this research where DHCP and DNS packets have been captured and analysed them with the help of Wireshark. Mainly we have analysed how IP address is assigned to a client from a DHCP Server and how packets are exchanged between the DHCP client and DHCP Server and DNS is used for resolution of URL into IP address.
Authors and Affiliations
Sameena Naaz , Firdoos Ahmad Badroo
Keywords
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