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On June 8, McGill University will participate in World IPv6 Day, a 24-hour test of the next generation of Internet addresses. Currently, the majority of Internet addresses use the IPv4 protocol, which provides a maximum of 4,294,967,296 addresses.
The Internet's growth has created a need for more addresses than IPv4 is capable of. Since an IPv6 address is much longer, the protocol can support approximately 340 undecillion (or 3.4×10 to the 38th power) addresses. The World IPv6 Day aims to encourage organizations to enable the use of IPv6 by their systems to ensure a successful transition as IPv4 addresses run out.
Most likely, you won't be affected in any way. Since most people go to websites by using a URL, such as http://www.mcgill.ca, you won't be able to tell if the site is using an IPv6 or IPv4 address. However, in rare cases, users may experience connectivity problems, either due to misconfigured home network devices or issues with non-Windows Operating Systems (OS).
If you experience any problems connecting to McGill websites on June 8, please contact the ICS Service Desk, making sure to provide your OS and Browser version.