IPv6 Address Equivalent of IPv4 Loopback Address

IPv6 Address Equivalent of IPv4 Loopback Address

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Which IPv6 address is the equivalent of the IPv4 interface loopback address



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A. B. C. D.


The IPv4 loopback address is used to test the network interface card (NIC) of a device by sending traffic to the device itself. In IPv6, the loopback address is represented by the ::1 address, which is option D in the question.

Option A, 0::/10, represents the IPv6 default route, which is used when no other route matches the destination address.

Option B, 2000::/3, is an address block reserved for Teredo tunneling, which is a technology used to encapsulate IPv6 traffic over an IPv4 network.

Option C, ::, represents the unspecified address, which is used to indicate that an address is not known or has not been assigned.

Therefore, the correct answer to the question is option D, ::1.