Vijay- The only thing I could find is that it's just standard practice to use FF FE.. For example, if you use privacy extensions then there is no FF FE because its address is hashed right? I think it's just a 16 bit filler for a MAC 48.. See below from the IEEE:
http://standards.ieee.org/regauth/oui/tutorials/EUI64.html Even RFC 4291 didn't really go into much detail either.. http://www.ietf.org/rfc/rfc4291.txt Anyone else have any thoughts? I also included the NAv6TF in the discussion.. 010100110110010101101101011100000110010101110010001000000100011001101001 Jeremy Duncan DTRA (BE-BIC) INFOSEC 3, IPv6 Architect Command Information Office: (703) 767-6167 Cell: (703) 598-1193 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Vijayrajan ranganathan Sent: Wednesday, June 24, 2009 1:09 AM To: [email protected] Subject: Implementation specific Interface-ID Hi Everyone, I have an ethernet interface for which I am defining the Interface-ID in a different manner. For an ethernet interface with MAC "34-56-78-9A-BC-DE", I am defining the Interface-ID to be "34-56-78-xy-zw-9A-BC-DE" instead of "36-56-78-FF-FE-9A-BC-DE" where x,y,z,w are my implementation-defined octets. Note: 1. I am fine with a locally-unique Interface-ID 2. The solicited-node multicast address i'll generate for a given unicast/anycast address based on this Interface-ID is the same as that for RFC 2464 based Interface-ID. Assuming I make this change in an IPv6 stack which conforms to RFCs 2464 - Transmission of IPv6 Packets over Ethernet Networks 3513 - Internet Protocol Version 6 (IPv6) Addressing Architecture 4861 - Neighbor Discovery for IP version 6 (IPv6) 4862 - IPv6 Stateless Address Autoconfiguration 3810 - Multicast Listener Discovery Version 2 (MLDv2) for IPv6 After this change, will I still conform to these RFCs?? Thanks & Regards Vijay -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
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