Bootstrap Protocol: Difference between revisions

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While some parts of BOOTP have been effectively superseded by the [[Dynamic Host Configuration Protocol]] (DHCP), which adds the feature of leases, parts of BOOTP are used to provide service to the DHCP protocol. Some DHCP servers also provide the legacy BOOTP functionality.
 
When a network-connected computer [[booting|boots]] up, its IP stack broadcasts BOOTP network messages requesting an IP- address assignment. A BOOTP configuration- server replies to the request by assigning an IP address from a pool of addresses, which is preconfigured by an administrator.
 
BOOTP is implemented using the [[User Datagram Protocol]] (UDP) for transport protocol, port number 67 is used by the (DHCP) server for receiving client-requests and port number 68 is used by the client for receiving (DHCP) server responses. BOOTP operates only on [[IPv4]] networks.