Exam 350-501 topic 1 question 223 discussion

Stateless versus Stateful NAT64 Comparison Stateless NAT64 * 1:1 translation * No conservation of IPv4 address * Assures end-to-end address transparency and scalability * No state or bindings created on the translation * Requires IPv4-translatable IPv6 address assignment (mandatory requirement) * Requires either manual or DHCPv6-based address assignment for IPv6 hosts Stateful NAT64 * 1:N translation * Conserves IPv4 address * Uses address overloading, so it lacks an end-to-end address transparency * State or bindings are created on every unique translation * No requirement on the nature of IPv6 address assignment * Free to choose any mode of IPv6 address assignment (DHCPv6 and stateless autoconfiguration)