IEEE recently updated their IEEEXplore platform to be IPv6 aware, which means that if a user's machine has an IPv6 address assigned to it – even if the machine has both an IPv6 address and a regular IP ("IPv4") address available – the IPv6 address will take precedence for authentication. Machines using IPv4 only will continue to authenticate to IEEE using IPv4.
The transition from IPv4 to IPv6 in the U.S. has been (and will continue to be) extremely gradual. Individual UC campuses are at different points in the IPv6 rollout process. Some campuses currently have IPv6 addressing available on their selected networks and services. Because of this, soon after the IEEE upgrade, some UC users encountered problems accessing IEEE when on machines using IPv6 addresses. Those issues have since been resolved and IEEE access should be working correctly for all campuses at this time.
As of July 2016, IEEE is the only systemwide-licensed resource vendor that is IPv6 aware. Since other licensed resources are not aware of IPv6, they still will continue to solely authenticate using IPv4 even if IPv6 is available on the machine.
Users may contact the CDL Helpline ticketing system located at https://helpline.cdlib.org for IP diagnostic information. More information on IPv6 can be found at http://www.enterprisenetworkingplanet.com/netsp/article.php/1347761/IPv6-What-You-Need-to-Know.htm.
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