Chapter 5. Local Network Security
This chapter covers the following subjects:
• Why Layer 2 Is Important: Explains that Layer 2 is not just plumbing; it is the foundation
• ICMPv6 Layer 2 Vulnerabilities for IPv6: Describes how the lack of authentication in Neighbor Discovery Protocol (NDP) leads to several vulnerabilities (similar to ARP spoofing)
• ICMPv6 Protocol Protection: Explains that SEcure Neighbor Discovery (SEND) extends NDP with cryptography
• Network Detection of ICMPv6 Attacks: Describes the detection—and even protection—offered by some public tools such as NDPMon
• Network Mitigation Against ICMPv6 Attacks: Covers what the network can do now and in the short term to protect against NDP attacks
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