[menog] IPv4 March 2011 depletion

[Ahmed Abu-Abed]

Hello everyone,

The new IPv4 depletion date, at the IANA level, is now March 2011, and only 11 blocks of /8 are left. A few months ago it was predicted as July 2011, but the exponential demand keeps bringing the date forward. 

See counter on http://www.ipv6forum.org/

Practically, there are only 6 more /8s left for grabs according to RIR demand, plus 5 more /8s already earmarked as one for each RIR once the last free /8 is handed over.

So by Q1 next year expect a lot of PR around this news and pressure on operations to be IPv6 ready all the way to the customers getting public IPv6 addresses.

There is a good presentation on how to deal with IPv6 access AND IPv4 coexistence for ISPs after IPv4-depletion, and it shows that DS-Lite and NAT64 are the only practical options:
http://www.slideshare.net/IOSHints/nat64-and-dns64-in-30-minutes

DS-Lite client needs to be implemented as a protocol on the CPE. NAT64 has a big catch in that it assumes your PC (or smart mobile host for that matter) is not on dual-stack, i.e. an IPv6-only host, which is a challenge. NAT64 also needs reworking the DNS infrastructure.


Wishing all a happy Eid !
كل عام وأنتم بخير

Ahmed Abu-Abed
Amman, Jordan
+962 777 669 100
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