I think you may be thinking of a link local address in IPv6. That's a non-routeable unicast address that starts with "FE8", "FE9", "FEA" or "FEB". Unlike IPv4, where most interfaces only have one IP address, it's common for interfaces to have 2 (o

Local IPv6 Address Generator. Local IPv6 Address Generator tool generates a Local IPv6 Address by getting Global ID and Subnet ID as input and ouputs the various parameters required for an IPv6 Address. This tool proves helpful when using IPv6 on your local computer. Note: In principle, the DHCPv6 protocol operates on link-local addresses, so strictly speaking a server doesn't require to have a global address configured on its interfaces. However, the DHCPv6 component in dhcpd was implemented to follow the same logic as its DHCPv4 counterpart and thus it requires a global IPv6 address configured on its If IPv6 was enabled only by a statically configured link-local address, deleting the link-local address disables IPv6 on the VLAN. If other IPv6-enabling commands have been configured on the VLAN, deleting the statically configured link-local address causes the switch to replace it with the default (EUI-64) link-local address for the VLAN, and IPv6 remains enabled. There are multiple IPv6 RFCs that explain aspects of IPv6 link-local addressing. RFC 4291, IP Version 6 Addressing Architecture, Section 2.5.6 Link-Local IPv6 Unicast Addresses: Link-Local addresses are designed to be used for addressing on a single link for purposes such as automatic address configuration, neighbor discovery, or when no Normal Link Local IPv6 address prefix is fe80::/10. • Multicast: A multicast address identifies zero or more interfaces on the same or different hosts. A multicast transmission sends packets to all interfaces that are part of a multicast group. The group is represented by the IPv6 destination address of the packet. IPv6 multicast addresses

Interestingly, IPv6 Link Local Address has been actively utilized since its creation, its capabilities and functionality has only garnered attention throughout the last couple of years. Regardless of your interest or experience in computer networks and backend infrastructure, understanding the role and potential of this widely used network

An IPv6 link-local address is an equivalent of IPv4's: APIPA addres. Which of the answers listed below refers to an IPv6 link-local address? FE80::/64 ( Your answer) Which of the following answers lists a valid address of FE80:00A7:0000:0000:02AA:0000:4C00:FE9A after compression? Local IPv6 Address Generator. Local IPv6 Address Generator tool generates a Local IPv6 Address by getting Global ID and Subnet ID as input and ouputs the various parameters required for an IPv6 Address. This tool proves helpful when using IPv6 on your local computer. Note: In principle, the DHCPv6 protocol operates on link-local addresses, so strictly speaking a server doesn't require to have a global address configured on its interfaces. However, the DHCPv6 component in dhcpd was implemented to follow the same logic as its DHCPv4 counterpart and thus it requires a global IPv6 address configured on its If IPv6 was enabled only by a statically configured link-local address, deleting the link-local address disables IPv6 on the VLAN. If other IPv6-enabling commands have been configured on the VLAN, deleting the statically configured link-local address causes the switch to replace it with the default (EUI-64) link-local address for the VLAN, and IPv6 remains enabled.

Routing protocols in IPv6 use the link-local addresses of routers as next-hop addresses so again, the communication based on link-local addresses must actually be possible. However, when you have a look at an IPv6 routing table, a network together with a link-local next-hop address will always be identified together with the outgoing interface:

If IPv6 was enabled only by a statically configured link-local address, deleting the link-local address disables IPv6 on the VLAN. If other IPv6-enabling commands have been configured on the VLAN, deleting the statically configured link-local address causes the switch to replace it with the default (EUI-64) link-local address for the VLAN, and IPv6 remains enabled. There are multiple IPv6 RFCs that explain aspects of IPv6 link-local addressing. RFC 4291, IP Version 6 Addressing Architecture, Section 2.5.6 Link-Local IPv6 Unicast Addresses: Link-Local addresses are designed to be used for addressing on a single link for purposes such as automatic address configuration, neighbor discovery, or when no Normal Link Local IPv6 address prefix is fe80::/10. • Multicast: A multicast address identifies zero or more interfaces on the same or different hosts. A multicast transmission sends packets to all interfaces that are part of a multicast group. The group is represented by the IPv6 destination address of the packet. IPv6 multicast addresses