encapsulate this false destination MAC address for packets, which results in a breakdown of
the normal communication.
Cheating Gateway
The attacker sends the wrong IP address-to-MAC address mapping entries of Hosts to the
Gateway, which causes that the Gateway cannot communicate with the legal terminal Hosts
normally. The ARP Attack implemented by cheating Gateway is illustrated in the following
figure.
Figure 14-9 ARP Attack – Cheating Gateway
As the above figure shown, the attacker sends the fake ARP packets of Host A to the Gateway,
and then the Gateway will automatically update its ARP table after receiving the ARP packets.
When the Gateway tries to communicate with Host A in LAN, it will encapsulate this false
destination MAC address for packets, which results in a breakdown of the normal
communication.
Cheating Terminal Hosts
The attacker sends the false IP address-to-MAC address mapping entries of terminal
Host/Server to another terminal Host, which causes that the two terminal Hosts in the same
network segment cannot communicate with each other normally. The ARP Attack implemented
by cheating terminal Hosts is illustrated in the following figure.
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