2/16/2023 0 Comments Wireshark mac address lookupTowards the router: Victim’s computer IP address and attackers PC MAC address.Īfter receiving such packets continuously, due to ARP protocol characteristics, the ARP cache of the router and the victims PC will be poisoned as follows:.Towards the victim’s computer system: Router IP address and attacker’s PC MAC address.Attackers trying to listen to traffic between any two devices, say a victims computer system and a router, will launch an ARP spoofing attack by sending unsolicited (what this means is an ARP reply packet sent out without receiving an ARP request) ARP reply packets with the following source addresses: Many managed switches and routers can be configured to monitor and control ARP traffic below a threshold.Īn MITM attack is easy to understand using this context. Note: From the network security professionals view, it becomes absolutely necessary to monitor ARP traffic continuously and limit it to below a threshold. Thus, not securing an ARP cache is dangerous to network security. Further, the device will remember this MAC address only as long as you keep telling the device about it. So let us interpret this quote by a leader of the infamous Nazi regime from the perspective of the ARP protocol: If you repeatedly tell a device who a particular MAC address belongs to, the device will eventually believe you, even if this is not true. It thus becomes vitally important for the state to use all of its powers to repress dissent, for the truth is the mortal enemy of the lie, and thus by extension, the truth is the greatest enemy of the state. The lie can be maintained only for such time as the state can shield the people from the political, economic and/or military consequences of the lie. Joseph Goebbels, Nazi Germanys minister for propaganda, famously said, If you tell a lie big enough and keep repeating it, people will eventually come to believe it. In this article, we will limit our discussions to MITM attacks that use ARP spoofing. Active attacks: These modify the traffic and can be used for various types of attacks such as replay, spoofing, etc.Īn MITM attack can be launched against cryptographic systems, networks, etc. Passive attacks (also called eavesdropping or only listening to the traffic): These can reveal sensitive information such as clear text (unencrypted) login IDs and passwords.Ģ.
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