200-301 Cisco Certified Network Associate (CCNA)

Which IPv6 address type provides communication between subnets and cannot route on the Internet?

  • A. link-local
  • B. unique local
  • C. multicast
  • D. global unicast
Answer: Option B.

Section: Network Fundamentals
A IPv6 Unique Local Address is an IPv6 address in the block FC00::/7. It is the approximate IPv6 counterpart of the IPv4 private address. It is not routable on the global Internet.
Note: In the past, Site-local addresses (FEC0::/10) are equivalent to private IP addresses in IPv4 but now they are deprecated.
Link-local addresses only used for communications within the local subnet. It is usually created dynamically using a link-local prefix of FE80::/10 and a 64-bit interface identifier (based on 48-bit MAC address).

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