Which IPv6 prefix defines a link-local IPv6 address?

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Multiple Choice

Which IPv6 prefix defines a link-local IPv6 address?

Link-local IPv6 addresses are used for communication on the same physical or logical link and are not routable beyond that link. They come from the FE80::/10 range, and the common per-interface prefix most often shown for these addresses is FE80::/64. That means any address starting with FE80 is intended for on-link use, with the remaining bits used to form the interface identifier. The FE80::/64 prefix is the best match for the link-local purpose because it designates addresses that devices automatically configure on each interface to discover neighbors on the local link. The other prefixes represent different scope or purposes: FC00::/7 is for Unique Local Addresses (private within a site), ::1/128 is the loopback address (address of the local host), and FE00::/64 is not the standard link-local prefix.

Link-local IPv6 addresses are used for communication on the same physical or logical link and are not routable beyond that link. They come from the FE80::/10 range, and the common per-interface prefix most often shown for these addresses is FE80::/64. That means any address starting with FE80 is intended for on-link use, with the remaining bits used to form the interface identifier. The FE80::/64 prefix is the best match for the link-local purpose because it designates addresses that devices automatically configure on each interface to discover neighbors on the local link. The other prefixes represent different scope or purposes: FC00::/7 is for Unique Local Addresses (private within a site), ::1/128 is the loopback address (address of the local host), and FE00::/64 is not the standard link-local prefix.

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