This guide is not a tutorial. Readers should be familiar with IPv4 and IPv6 addressing and terminology.
Throughout this guide we assume that the internet uplink provides native IPv6
connectivity with a prefix sized large enough such that it can be subdivided
into multiple /64 networks. Respectable ISPs will assign static IPv6
prefixes between a /60 (min) and /48 (max) either by default or on
request.
Deployments stuck with an IPv4 only uplink or with dynamic / dysfunctional IPv6 connectivity may choose to upgrade to static IPv6 with the help of a tunnel broker service.