Meno del 5% degli indirizzi IPv4 disponibile

Come segnalato da s3v, il 18 di questo mese l'NRO, la Number Resource Organization, ente che rappresenta ufficialmente i RIR (Regional Internet Registry) ha annunciato che solo 12 classi A di indirizzi IPv4 rimangono disponibili.

Questo vuol dire meno del 5% delle 254 classi. Nove mesi fa, a gennaio, si scese sotto la soglia del 10%, e questo fa prevedere un esaurimento delle classi più significative nel 2011. Quest'anno si registra un fortissimo aumento delle allocazioni di classi di indirizzi IPv6 a fronte di un aumento molto modesto delle allocazioni IPv4 (70% contro 8%).

Questo è un buon segnale, che illustra l'importanza centrale che ha ormai l'IPv6 e la relativa "corsa" al suo utilizzo.
Quello che c'è da chiedersi è se e come tutte le strutture ora incentrare sull'IPv4 reagiranno l'anno prossimo quando verosimilmente IPv6 non sarà più solo una saggia scelta, ma una necessità assoluta.

Da tanti anni si fanno previsioni sulla fine degli indirizzi IPv4. Ora, probabilmente, siamo di fronte ai suoi sgoccioli (non sul suo uso, attenzione, ma del suo ruolo nella crescita della Rete).

Questa è veramente la fine della prima grande epoca di Internet. Siamo di fronte a un cambiamento drastico, una letterale "esplosione" dello spazio degli indirizzi. D'ora in poi ogni singolo granello di sabbia potrà avere il suo unico indirizzi ip pubblico.
Detto così può non sembrare particolarmente utile, e sono d'accordo.
Per cosa utilizzeremo quell'enormità di spazio degli indirizzi risulta per me un mistero, ma induce anche una grande curiosità per il futuro.

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