To enable internet growth and innovation, it’s important to have enough globally unique IP address space.
But with the last unused blocks of IPv4 global addresses having been handed out in 2011, many Janet-connected sites are using IPv4 NAT with private addresses, in order to conserve their global address space.
This adds network complexity, and makes it harder to offer end-to-end services for users.
But with IPv6, the successor to IPv4, you can have enough globally unique address space for the foreseeable future – helping enable innovation.
With deployment growing worldwide, and over 20% of UK network traffic over IPv6, it makes sense to begin planning your IPv6 deployment now.
Janet's network backbone is fully enabled for IPv6. If you have a Janet connection, IPv6 is an option available to you free of charge.
By default, you will also receive a /48 IPv6 prefix, which in practice allows over 65,000 subnets with effectively an unlimited number of devices on each subnet.
That’s significantly more address space than with IPv4, and helps you support the increasing number of devices needing network connectivity.
At Jisc, we also offer guidance and training to allow you to find the most appropriate way to deploy IPv6.
Typically, Janet-connected organisations follow a “dual-stack” model for deployment, running IPv6 alongside IPv4 – for example, by IPv6-enabling their public-facing web presence or eduroam network, or by deploying IPv6 in support of teaching and research in their computer science departments.
As more access networks around the world deploy IPv6-only – most notably mobile operators – having IPv6-enabled public-facing services is the best way to provide robust connectivity to users on those networks.
With all common network and OS platforms now supporting IPv6 – and IPv6 invariably enabled and on by default – it makes good business sense to start planning now, including articulating IPv6 requirements in procurement tenders.