[discuss] Leading zeros [Report from the BR meeting local organizing group - Dec 2013]

Roland Perry roland at internetpolicyagency.com
Thu Jan 2 15:24:06 UTC 2014

In message <52C31881.5030002 at gmail.com>, at 08:18:25 on Wed, 1 Jan 2014, 
Brian E Carpenter <brian.e.carpenter at gmail.com> writes
>> You just need to add a sufficient number of zeros in front of the IPv4
>> space, to give it a niche in IPv6 space.
>Doesn't help. An IPv4-only host still can't interpret an IPng
>packet, which is the fundamental problem. This idea was
>investigated in great depth (it was mentioned in RFC 1671, but I
>didn't invent it) but it simply doesn't solve the coexistence
>and interop problem.
>It was actually in the IPv6 addressing architecture from 1995
>(RFC 1884) and was only officially obsoleted in 2006 (RFC 4291)
>due to having no operational value.

20 calendar years after rfc1671, which is perhaps an "Internet-time 
Century" I'm, surprised all the boffins in question haven't got a better 
solution than that.
Roland Perry

More information about the discuss mailing list