Real-Time IP Checking and Packet Marking for Preventing ND-DoS Attack Employing Fake Source IPin IPv6 LAN

摘要

IPv6 has been proposed as a basic Internet protocol for realizing a ubiquitous computing service. An IPv6 LAN may suffer from a Neighbor Discovery-Denial of Service (ND-DoS) attack, which results in network congestion on the victim IPv6 LAN by making a great number of Neighbor Discovery protocol messages generated. A ND-DoS attacker may use a fake source IP address to hide his/her identity, which makes it more difficult to handle the attack. In this paper, we propose an IP checking and packet marking scheme, which is applied to an IPv6 access router. The proposed scheme can effectively protect IPv6 LAN from ND-DoS attack employing fake source IP by providing the packets suspected to use fake source and/or destination IP addresses with a poor QoS.