Adopt Ipv6 as IPv4 addresses depleted in U.S.

The American Registry for Internet Numbers (ARIN), the nonprofit organization that handles Internet addresses in America, has announced that due to depletion of its IPv4 Free Pool, it is no longer able to fulfil requests for IPv4 address space unless it’s an organisation requesting a small block of IPv4 address space to facilitate the transition to IPv6 or micro-allocations for specific purposes such as the operation of exchange points.

"The source entity (-ies within the ARIN Region (8.4)) will be ineligible to receive any further IPv4 address allocations or assignments from ARIN for a period of 12 months after a transfer approval, or until the exhaustion of ARIN's IPv4 space, whichever occurs first”, the announcement read.

The announcement came after years of warnings from the organization and others that IPv4 addresses were running out and that businesses and carriers should adopt next protocol, IPv6, reports Techworm.

Vint Cerf is one of the few visionaries who have been calling for the rapid implementation of IPv6. He is one of the internet pioneers who called for IPv6 rollout to facilitate the growth of IoT back in May.

“This means that organisations across North America can now only obtain IPv4 addresses by trading for them”, he said.

Internet Protocol version 6 (IPv6) is the latest revision of the Internet Protocol (IP), which was developed in response to the inevitable IPv4 address depletion. ARIN strongly encourages users to deploy IPv6 on their networks and equipment, so that they can remain visible to the entirety of the Internet.

Compared to IPv4, IPv6 offers larger address space. Its addresses are 128 bits long, resulting in an address space of 340 undecillion addresses. In addition, IPv6 provides other technical benefits, particularly, it permits hierarchical address allocation methods that facilitate route aggregation across the Internet, and thus limit the expansion of routing tables. The use of multicast addressing is expanded and simplified, and provides additional optimization for the delivery of services. Device mobility, security, and configuration aspects have been considered in the design of the protocol.

“Effective today, because exhaustion of the ARIN IPv4 free pool has occurred for the first time, there is no longer a restriction on how often organizations may request transfers to specified recipients”, said John Curran, ARIN CEO and President.

He added that in the future, any IPv4 address space that ARIN receives from IANA, or recovers from revocations or returns from organizations, will be used to satisfy approved requests on the Waiting List for Unmet Requests. If all the requests on the waiting list are fully satisfied, any remaining IPv4 addresses would be placed into the ARIN free pool of IPv4 addresses to satisfy future requests.