Re: IP version 6
I used to work for a corporation that got started on the Internet in a pretty small way in early 1992. But we had a number of divisions around the country, and we were planning to grow our Internet presence, so I asked our first ISP (PSInet) for a class-B network (i.e. /16 in CIDR terms). We got one, almost no questions asked. At that time, there was no NAT, no classless routing (CIDR), and no private address spaces defined. When we left that ISP, we took our addresses with us (and the ISP expected us to do so). To this day, the company still has all that address space, and is probably still using it internally.
I do not see any sign of a worthwhile transition plan to retire IPV4 in favor of IPV6. IMHO the fact that the stacks do not interoperate in a useful way is a serious defect in making this transition practical.
I used to work for a corporation that got started on the Internet in a pretty small way in early 1992. But we had a number of divisions around the country, and we were planning to grow our Internet presence, so I asked our first ISP (PSInet) for a class-B network (i.e. /16 in CIDR terms). We got one, almost no questions asked. At that time, there was no NAT, no classless routing (CIDR), and no private address spaces defined. When we left that ISP, we took our addresses with us (and the ISP expected us to do so). To this day, the company still has all that address space, and is probably still using it internally.
I do not see any sign of a worthwhile transition plan to retire IPV4 in favor of IPV6. IMHO the fact that the stacks do not interoperate in a useful way is a serious defect in making this transition practical.
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