DHCPNAKviestillä

DHCPNAK is a message type used in the Dynamic Host Configuration Protocol (DHCP) to inform a client that the IP address it has been assigned is no longer valid. This message is sent by the DHCP server to the client when the server detects that the IP address has been leased to another client or when the lease has expired. The DHCPNAK message contains the IP address that is no longer valid and the reason for the invalidation. Upon receiving a DHCPNAK message, the client must stop using the IP address and initiate a new DHCP request to obtain a new IP address. This process helps maintain the integrity of the IP address assignments in a network, ensuring that each client has a unique and valid IP address at any given time.