Vulnerability of MR-ARP in prevention of ARP poisoning and solution

Abstract

In this paper we are discussing ARP poisoning and its solution over Local Area Network. As we know that Enhanced ARP (MITM-Resistant Address Resolution Protocol (MR-ARP)) is the prevention of ARP poisoning in which two tables are used, for cross checking any ARP request and if any new request arises then it uses voting process. First table is long term table which is updated for 60 minutes and other one is short term table which is same as normal ARP table. In some cases update policy of the long term table of MR-ARP causes the attack over LAN and ARP poisoning can be possible. MITM is quite possible over MR-ARP when any node become offline for some time and any other node wants to perform attack over that node. Here we will discuss the attack over MR-ARP and some corrective measures.