Worth Reading: IPv6 addressing What we have today is a single “boundary” in the IPv6 address plan, where the low order 64 bits are locally assigned as an interface identifier, and the high order 64 bits are in essence a network identifier, where the boundary between what constitutes locally defined site networks and globally visible networks is left to each network operator. Related ← Worth Reading: Are options widening for enterprise network services?Worth Reading: The Battle for Network Monitoring →