Certified - CompTIA Network + Audio Course
Episode 45: APIPA and EUI-64 — Self-Assigned and Extended Addressing
20 Jul 2025
This episode introduces Automatic Private IP Addressing (APIPA) and EUI-64 addressing. APIPA is a fallback mechanism in IPv4 where devices assign themselves an address in the 169.254.0.0/16 range when DHCP is unavailable. EUI-64, used in IPv6, generates interface identifiers from a device’s MAC address to create unique addresses. These topics are important for the exam because they represent special addressing mechanisms that appear in troubleshooting scenarios.The episode expands with real-world implications. APIPA addresses can indicate DHCP server failures or misconfigurations, and recognizing them is critical for diagnosing connectivity issues. EUI-64 provides an automated way to extend addressing in IPv6 but also raises privacy considerations by tying addresses to hardware identifiers. Understanding these concepts ensures you can identify their behavior on the exam and apply them effectively in practice. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your certification path.
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