UNH IPv6 Information


IPv6 the new Internet protocol


The Internet Protocol version 6, commonly referred to as IPv6, is the future of Internet communications. In the early 90s Internet Registries realized that the current address scheme would not sustain the growth of the Internet and began working on a new address design. The result was IPv6, the new standard for Internet communications with 128 bits allocated for addresses. The Internet which is currently running IPv4 (32 bits for address) only supports about 4 billion unique addresses. Today it seems that everything is Internet enabled and the prolific distribution of smartphones, tablets as well as the developing Internet of Things (IOT) current addressing will not support a robust Internet. This is where IPv6 steps in and enables support for the massive growth of the Internet offering a functionally unlimited amount of unique address space with about 340 trillion trillion trillion addresses. Implementing IPv6, if implemented properly, will keep the Internet going and growing in functionality and new exciting uses/applications.

USNH/UNH IPv6 Support


The Internet is changing fast and UNH IT is committed to providing the services our community requires to support the mission. We are actively planning, implementing and managing IPv6 services on the UNH/USNH network. As UNH moves towards IPv6 support across the network our first implementations have been in safe and controlled environments to ensure network stability and to not adversely affect current IT services. The long term goal is to transition to a fully supported IPv6 network at UNH and throughout the University System of New Hampshire. UNH is a land, sea and space grant university which is one reason it is important to keep pace with Internet standards and government mandates while providing the best possible IT services.

Transitioning to IPv6 does not mean disabling IPv4. In most cases the transition period will support both IPv4 and IPv6 on the same network. Modern operating systems typically have both IPv6 and IPv4 enabled by default and will operate together dynamically selecting the best protocol for the application. This is very similar to the days where Novell, DecNet and EtherTalk all worked on the same network alongside IPv4.

During the transition period top priority is to maintain a secure and robust network while IPv6 operates in parallel with IPv4. The transition to full IPv6 will take several years. Making steps toward IPv6 support today will not only allow a simplified network address routing structure it will also allow the Internet to develop new and more fully featured end to end applications. UNH/USNH is committed to do our part in moving the university system and the Internet into the future with new technology and possibilities.


IPv6 progress at UNH


  • 2011 UNH acquired Netblock-32, 2606:4100::/32, from ARIN.
  • InterOperbility Lab assignment of 2606:4100:38C0::/44.
  • Computer Science Department assignment of 2606:4100:38D0::/48.
  • Created a IPv6 only Test Network, built by IT-Senior students
  • Enabled IPv6 on DNS servers
  • Enabled IPv6 Akamai CDN network
  • Test IPv6 Web Solution VM guest web servers
  • Enabled IPv6 on Network Operations Subnet, dual stack
  • Enabled IPv6 for UNH Login and Mail Gateway servers
  • Test NAT64 service on Test Network, IT Students Senior Project 2013
  • Computer Cluster Testing Dual Stack 2013 Summer
  • Testing DHCP/DDNS with Cluster Testing, 2013 Summer
  • Production DHCP/DDNS for public Cluster, 2013 Fall
  • Testing Palo-Alto firewall and SIEM, 2014 Spring


  • IPv6 Interest and Further Information
    IPv6 Inqueries and Further Information
    UNH IT is interested in working with the USNH/UNH community to enable IPv6 on servers and explore IPv6 support for departments and Colleges. For further information please contact the UNH ITSM Service Desk via web form http://it.unh.edu/questions. We look forward to answering your questions and consulting to plan for your IPv6 deployment.
    IPv6 Information
    IPv6 Resources

    IPv6 status and information.
    World Lauch 2012 IPv6 participants and statistics
    Tested Operating Systems and Applications

    Home IPv6 deployment is underway and information can be found through home ISPs.
    UNH recommends you do your research and pursue the IPv6 support that fits your environment.
    IOL IPv6 Home Networking information
    Comcast IPv6 information center
    Time Warner IPv6 information center

    Link to LAN tools, resources, things you can check on your system
    Test IPv6 connectivity
    IPv6 Test connectivity

    IT professionals become familiar with IPv6 today - don't wait!