IPv6 Address Assignment

D

In IPv6 addressing, there are different entities that play different roles in the assignment of IP addresses to end-users. Let's go through each answer choice to understand their role in IPv6 addressing.

A. ICANN (Internet Corporation for Assigned Names and Numbers) is a non-profit organization responsible for managing the Internet's domain name system (DNS), IP address allocation, and protocol parameter assignment. However, ICANN does not assign IPv6 addresses to end-users directly.

B. APNIC (Asia-Pacific Network Information Centre) is one of the five Regional Internet Registries (RIRs) responsible for the distribution and registration of IP addresses and autonomous system numbers (ASNs) in the Asia-Pacific region. APNIC does not assign IPv6 addresses to end-users directly but rather allocates them to ISPs.

C. RIR (Regional Internet Registry) is an organization responsible for the allocation and registration of IP addresses and ASNs within a specific region. The five RIRs are:

• ARIN (American Registry for Internet Numbers) for North America
• RIPE NCC (Réseaux IP Européens Network Coordination Centre) for Europe, the Middle East, and Central Asia
• APNIC (Asia-Pacific Network Information Centre) for Asia and the Pacific region
• LACNIC (Latin America and Caribbean Network Information Centre) for Latin America and the Caribbean
• AfriNIC (African Network Information Centre) for Africa

RIRs allocate blocks of IPv6 addresses to ISPs, who then assign them to their end-users.

D. ISPs (Internet Service Providers) are organizations that provide Internet connectivity services to end-users, such as individuals, businesses, and organizations. ISPs receive IPv6 address blocks from RIRs and assign them to their end-users.

Therefore, the correct answer to the question is C. RIRs assign IPv6 addresses to ISPs, who then assign them to their end-users.