This phase uses dual-stack to maintain
full IPv4 functionality, while
establishing an IPv6 Internet presence.
The implementation ought to start with
external-facing connectivityaddressing
Internet connectivity; reach
to users, partners and mobile
endpoints. The capability for IPv6 is
brought into data centres and hosted
sites. The impact focuses on security,
impacting firewalls, web servers,
router ISP and Demilitarized Zone
(DMZ)