Generating Interface Identifiers Using Modified EUI-64 [IPv6 Overview]
This video explains Modified EUI-64, which is used to automatically generate the low-order 64 bits of IPv6 addresses.
The low-order bits of an IPv6 address are called the interface identifier. The Modified EUI-64 format, based on the MAC address (IEEE EUI-48), was once a required interface identifier format.
However, the Modified EUI-64 format, which uses a MAC address, posed security and privacy issues. For this reason, RFC 7136, published in 2014, no longer requires the interface identifier format for unicast IPv6 addresses to be Modified EUI-64, and RFC 8064, published in 2017, deprecated it.
Although the use of Modified EUI-64 is now deprecated, it was once a required feature and is still implemented in many systems and is still in use in some cases, so I made this explanatory video. This video is also intended to inform people who studied IPv6 in the past that it is now deprecated.
In this video, we explain what Modified EUI-64 is, what issues led to its deprecation, and the currently recommended method.
00:00 Generating Interface Identifiers Using Modified EUI-64
00:40 Overview of Modified EUI-64
03:58 IEEE-Specified EUI-48 and EUI-64
08:05 Modified EUI-64 Format
12:13 Issues with Modified EUI-64 Interface Identifiers
19:52 Modified EUI-64 Will No Longer Be Required in 2014
24:01 The Modified EUI-64 Format Will Be Deprecated in 2017
25:21 How to Generate Interface Identifiers Other Than Modified EUI-64
27:00 Conclusion
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The Mystery of Interface Identifiers and IPv6 Address Generation with Modified EUI-64
• 「インターフェース識別子」という名称の謎とModified EUI-64によるIPv...
[RFCs Featured in This Video]
RFC 2464 Transmission of IPv6 Packets over Ethernet Networks
RFC 3972 Cryptographically Generated Addresses (CGA)
RFC 4291 IP Version 6 Addressing Architecture
RFC 6973 Privacy Considerations for Internet Protocols
RFC 7136 Significance of IPv6 Interface Identifiers
RFC 7707 Network Reconnaissance in IPv6 Networks
RFC 7721 Security and Privacy Considerations for IPv6 Address Generation Mechanisms
RFC 8064 Recommendation on Stable IPv6 Interface Identifiers
RFC 8981 Temporary Address Extensions for Stateless Address Autoconfiguration in IPv6
[Other references]
Privacy and IPv6 Addresses (IAB)
https://www.iab.org/wp-content/IAB-up...
Guidelines for Use of Extended Unique Identifier(EUI), Organizationally Unique Identifier(OUI), and Company ID(CID)
https://standards.ieee.org/content/da...
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