Configuring Defense Against Attacks by Sending Bogus Packets for Extending IP Leases

The attacker continuously sends DHCP request packets to pretend to be a user for leasing the IP address again. As a result, the expired IP addresses cannot be reclaimed properly.

Configuring Defense on the Layer-2 Interfaces Against Attacks by Sending Bogus Packets for Extending IP Leases: This section describes how to prevent the attacker connected to the Layer-2 interface from launching bogus DHCP extended-releasing packet attacks.

Configuring Defense on the Layer-3 Interfaces Against Attacks by Sending Bogus Packets for Extending IP Leases: This section describes how to prevent the attacker connected to the Layer-3 interface from launching bogus DHCP extended-releasing packet attacks.