IPv6 Link Local addresses are identified among IPv6 addresses by reserving the left most 64 bits as 1111111010000000 0000000000000000 0000000000000000 0000000000000000 (translates to FE80 in hexadecimals). IPv6 Link Local addresses are used by devices for communicating with other nodes on the same link.

An IPv6 network uses an address block that is a contiguous group of IPv6 addresses of a size that is a power of two. The leading set of bits of the addresses are identical for all hosts in a given network, and are called the network's address or routing prefix . Apr 14, 2020 · The purpose of this document is to provide a better understanding of IPv6 Link-local address in a network. A link-local address is an IPv6 unicast address that can be automatically configured on any interface using the link-local prefix FE80::/10 (1111 1110 10) and the interface identifier in the modified EUI-64 format. These addresses refer only to a particular physical link and are used for Aug 09, 2017 · If you assign the link-local address FE80::1 on each of its interfaces and if that link-local address is unique on each of those LAN segments, then this becomes the default gateway for the hosts on those LANs. Therefore, each host, no matter on which LAN, will see FE80::1 as the next-hop IPv6 address for the default route in its routing table. Jun 15, 2020 · Hello John, the FE80::/10 are the link local addresses. It is correct that you don't see them in the routing table: as explained in a previous thread actually it is a single IPv6 /64 subnet using eui-64 format what you get.

fe80::/10 Example: fe80::200:5aee:feaa:20a2 Prefix Designation and Explanation IPv4 Equivalent Unspecified This address may only be used as a source address by an initialising host before it has learned its own address. Loopback This address is used when a host talks to itself over IPv6. This often happens when one program sends data to another.

Jul 26, 2019 · I think this is because the IPv6 fe80::1%xx is in the DNS Server address list on client computers. When I disable IPv6, that address goes away from DNS Server address list and then the name servername.domain.local is resolved properly over IPv4 and everything works perfectly. IPv6 is making room. Everything that connects to the Internet has to have its own unique Internet Protocol (IP) address. Think of an IP address as a phone number that websites and devices use to communicate with each other. Apr 28, 2011 · IPv6 link-local addresses are a special scope of address which can be used only within the context of a single layer two domain. Packets sourced from or destined to a link-local address are not forwarded out of the layer two domain by routers. IP addresses can be represented in several different ways, including IPv4, IPv6, integer, and hex formats. IPv4 format. This is the most common notation for IPv4 addresses. Each address is 32 bits in length and the 32-bit address is broken up into four 8-bit octets. Examples include 192.0.2.0, 198.51.100.0, and 203.0.113.0. IPv6 format

Auto-configured IPv6 address is known as Link-Local address. This address always starts with FE80. The first 16 bits of link-local address is always set to 1111 1110 1000 0000 (FE80). The next 48-bits are set to 0, thus: [Image: Link-Local Address] Link-local addresses are used for communication among IPv6 hosts on a link (broadcast segment) only.

Jul 26, 2019 · I think this is because the IPv6 fe80::1%xx is in the DNS Server address list on client computers. When I disable IPv6, that address goes away from DNS Server address list and then the name servername.domain.local is resolved properly over IPv4 and everything works perfectly.