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Question

Difficulty: EasyIPv6 Addressing Concepts and Header Structure

Match each IPv6 address prefix or special address on the left with its correct classification or function on the right.

  • fe80::/10Link-local unicast address space
  • ff00::/8Multicast address space
  • 2000::/3Global unicast address space
  • ::1/128Loopback address

Answer

fe80::/10 pairs with Link-local unicast address space; ff00::/8 pairs with Multicast address space; 2000::/3 pairs with Global unicast address space; ::1/128 pairs with Loopback address.
Each IPv6 prefix is assigned a specific function according to standard address allocations: fe80::/10 is link-local unicast, ff00::/8 is multicast, 2000::/3 is global unicast, and ::1/128 is the loopback address.

Step-by-Step Solution

1
Identify the purpose of fe80::/10
Recognize that fe80::/10 corresponds to link-local unicast communication within a local subnet.
Link-local addresses always start with fe80::/10.
2
Identify the purpose of ff00::/8
Recognize that ff00::/8 corresponds to multicast addressing.
All IPv6 multicast addresses begin with the prefix ff00::/8.
3
Identify the purpose of 2000::/3
Recognize that 2000::/3 corresponds to global unicast addresses.
Publicly routable IPv6 global unicast addresses are allocated out of the 2000::/3 block.
4
Identify the purpose of ::1/128
Recognize that ::1/128 corresponds to the host loopback address.
The compressed notation ::1/128 represents the local loopback host interface.

Key Concept

IPv6 Address Prefixes and Scope Designations
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Topics

IPv6 Addressing Concepts and Header Structure

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