Hi, On Sat, Jun 11, 2016 at 09:45:03PM +0300, NTX NOC wrote:
240.0.0.0/4 Reserved (former Class E network) RFC 1700
Many OSes do not support it, because it is not unicast address space (coming behind the multicast range 224.0.0.0/4). Some do, but if you put your webservers in there, you want to make sure that *all* clients can use it. So lots of software and hardware upgrades would be needed to ensure it's actually useful. And if you do that, why not do IPv6? The other reason why this is not a useful avenue to purchase is that 16 /8s would be burnt up in like 1.5 years time if we return to the old regime of "show me your need, and I give you enough address space for it" - many large providers could easily use up a few /12 here and there... bang, first /8 gone. Gert Doering -- NetMaster -- have you enabled IPv6 on something today...? SpaceNet AG Vorstand: Sebastian v. Bomhard Joseph-Dollinger-Bogen 14 Aufsichtsratsvors.: A. Grundner-Culemann D-80807 Muenchen HRB: 136055 (AG Muenchen) Tel: +49 (0)89/32356-444 USt-IdNr.: DE813185279