tag:blogger.com,1999:blog-4083973893101999169.post6040329577188061892..comments2023-10-31T04:44:36.736-07:00Comments on ipv6 Tutorial on Addressing | ipv6 RFC: How to Form a Link Local address from MAC AddressUnknownnoreply@blogger.comBlogger1125tag:blogger.com,1999:blog-4083973893101999169.post-36785766087098377742010-06-29T13:24:24.041-07:002010-06-29T13:24:24.041-07:00Mr. Gulati,
Thank you for producing such an infor...Mr. Gulati,<br /><br />Thank you for producing such an informative blog. As I slog my way through learning IPv6, your postings have been very helpful. I have a question though. You mention that the universal bit is the 6th bit in the first octet (from the right it would seem). I've found an article on <a href="http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_7-2/ipv6_autoconfig.html" rel="nofollow">Cisco</a> from 2004 which agrees with what you say, but I've also found a <a href="http://ccie20728.wordpress.com/2008/05/11/ipv6-link-local-address/" rel="nofollow">CCIE blog</a> and text in <a href="http://www.tcpipguide.com/free/t_IPv6InterfaceIdentifiersandPhysicalAddressMapping-2.htm" rel="nofollow">"The TCP/IP Guide"</a>, which both say the universal bit is the 7th bit from the left, in the first octet (2nd bit from the right in the first octet). Can you help clarify which it is?Anonymoushttps://www.blogger.com/profile/11588463234041436578noreply@blogger.com