The document discusses the impending depletion of IPv4 addresses and the need to migrate to IPv6. It summarizes BIS's work to promote IPv6 adoption in the UK, including workshops that found mixed views among industry. A possible migration plan is outlined, starting at the network core and moving outward. 6UK is introduced as a non-profit established by BIS to raise awareness, provide information and tools, and promote IPv6 adoption among UK businesses before IPv4 addresses run out.

1. BIS Perspective on the likely IPv4/IPv6 Migration, and the Way Ahead with 6UK

2. Simon Hicks Head of Electronic Communications Technology, BIS [email_address] with thanks to Jim Reid, 6UK

10. Tentative Timeline