The Internet Engineering Task Force (IETF) has reserved the IPv4 address block 169.254 if a device received an IP address. 0.0/16
A link-local address is a unicast network address that is valid only for communications within the subnetwork to which the host is linked. Link-local addresses are typically issued automatically by a method known as stateless address autoconfiguration or link-local address autoconfiguration,[1] sometimes known as automatic private IP addressing (APIPA) or auto-IP. As a result, routers do not forward packets that have link-local source or destination addresses. IPv4 link-local addresses are assigned from the address block 169.254.0.0/16.
The Address Resolution Protocol (ARP) is used to convert between Layer 2 MAC addresses and Layer 3 IP addresses.ARP resolves IP addresses to MAC addresses by requesting, "Who owns the IP address 192.168.2.140, please inform me?" They are assigned from the block that may be configured inside its subnet.ARP resolves IP addresses to MAC addresses by requesting, "Who owns the IP address 192.168.2.140, please inform me?" They are assigned from the block that may be configured inside its subnet .ARP resolves IP addresses to MAC addresses by requesting, "Who owns the IP address 192.168.2.140, please inform me?" They are assigned from the block that may be configured inside its subnet.
ARP resolves IP addresses to MAC addresses by requesting, "Who owns the IP address 192.168.2.140, please inform me?" They are assigned from the block that may be configured inside its subnet.