IPv6 link local addresses start with which address range?

IPv6 link-local addresses serve the purpose of enabling communication between nodes on the same local link (or network segment) without the need for a globally routable address. These addresses are essential for network operations such as automatic address configuration and neighbor discovery.

Link-local addresses in IPv6 specifically start with the address range FE80::/10. This means any IPv6 address that begins with the binary format of FE80 through FEBF falls into the category of link-local addresses. These addresses are automatically assigned to interfaces when IPv6 is enabled, making them crucial for local network functions.

The other choices include address ranges used for different purposes:

• The range 2000::/3 refers to globally routable unicast addresses, which are used for internet communication.

• The range FC00::/7 is designated for unique local addresses, similar to private addresses in IPv4.

• The range 169.254::/16 pertains to link-local addresses in IPv4, known as APIPA (Automatic Private IP Addressing), but is not relevant to IPv6.

Understanding the purpose and function of these address ranges is important when studying networking, as it helps in configuring and troubleshooting network connections efficiently.