Tagged With ipv6


Over the last few years, networks have begun the shift from the five decade old IPv4 architecture to the newer IPv6 system. While the number of addresses available to IPv4 was massive at the time, the new system will provide so many addresses that it's possible to assign a unique address to every atom on the planet. But that shift has resulted in another change. Threat actors now have new ways to potentially attack systems. Wesley George, Principal Engineer at Neustar, and I discussed what this means for today's network managers.


We've known for decades that the available pool of IPv4 address was eventually going to dry up, but despite numerous warnings usage of its successor IPv6 is still minimal. Why haven't we migrated yet? Geoff Huston, chief scientist for regional internet registry APNIC, suggests that the answer is that carriers are too cheap to make the switch and are happy to rely on network address translation (NAT) systems instead.


One of the reasons people resist changing over to IPV6 is a fear that their favourite sites and resources may become inaccessible. If you're curious about whether a given site is accessible via IPv6, a simple search using this CGI script developed by engineer Mark Prior will tell you if its server has an IPv6 option, and whether it supports the protocol for other options such as SMTP for mail.