The depletion of IPv4 address pools creates different problems in...
The depletion of IPv4 address pools creates different problems in different regions. An Iranian private Internet-by-satellite provider made an urgent call to the Réseaux IP Européens (RIPE) community for help finding a set of IPv4 addresses shortly after the announcement…
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that the regular IPv4 address pool is empty. RIPE allocates IP addresses in Europe and the Middle East. With nationwide fiber infrastructure and the Internet gateway operated by the government and no short-term planning for regular addition of IPv6, there was a problem for the ISP. Tunneling, which some use as a transition mechanism, isn’t easily available to the ISP because “tunneling through international gateways is not allowed due to Legal Interception (LI) issues,” said Siavash Khorsandi, assistant professor at the Amirkabir University of Technology and participant to the Iranian IPv6 Forum. As for tunneling through IPv4 backbones inside, he said, “there should be no problems.” Iran had taken a number of steps to help ISPs to migrate, he said in an email. But experts are concerned that such action is slow, with 99 percent of networking in the hands of the government. For the private ISPs in Iran, trying to “buy” IPv4 addresses from the nascent IP address market might be quicker, though more expensive. RIPE data indicate the number of IPv6-enabled hosts in Iran is 0.5 percent, compared to more than 20 percent in the U.S.