bootp การใช้

• Helper addresses also can be used to forward other BOOTP ).
• DHCP servers also provide the legacy BOOTP functionality.
• BOOTP operates only on IPv4 networks.
• It is implemented with two UDP port numbers for its operations which are the same as for the BOOTP protocol.
• Bootp was an early protocol used for this, and to this day its descendant DHCP is still very common.
• A BOOTP configuration server assigns an IP address based on the request from a pool of addresses configured by an administrator.
• RARP is obsolete; it was replaced by BOOTP, which was later superseded by the Dynamic Host Configuration Protocol ( DHCP ).
• DHCP is based on BOOTP but can dynamically allocate IP addresses from a pool and reclaim them when they are no longer in use.
• Only hosts with preconfigured IP addresses can receive unicast packets so in the usual use case clients in discovery phase should set BOOTP flag to 0x8000 ( broadcast ).
• This pioneer TFTP / BOOTP / DHCP approach fell short because, at the time, it did not define the required standardized client side of the provisioning environment.
• Historically, BOOTP has also been used for Unix-like diskless workstations to obtain the network location of their boot image, in addition to the IP address assignment.
• In Mac OS X, the ifconfig command functions as a wrapper to the IPConfiguration agent, and can control the BootP and DHCP clients from the command-line.
• To enable the forwarding of User Datagram Protocol ( UDP ) broadcasts, including BOOTP, received on an interface, use the ip helper-address command in interface configuration mode.
• It has been rendered obsolete by the Bootstrap Protocol ( BOOTP ) and the modern Dynamic Host Configuration Protocol ( DHCP ), which both support a much greater feature set than RARP.
• When a computer that is connected to a network is powered up and boots its operating system, the system software broadcasts BOOTP messages onto the network to request an IP address assignment.
• Additionally, there is a BOOTP flag the client can use to indicate in which way ( broadcast or unicast ) it can receive the DHCPOFFER : 0x8000 for broadcast, 0x0000 for unicast.
• For network auto-booting, the Preboot Execution Environment ( PXE ) or Bootstrap Protocol ( BOOTP ) network protocols are commonly used to find a server with files for booting the device.
• If You have the driver only, You need to use fixed IP settings ( no DHCP / BOOTP ), define a local g顣槝T ) 15 : 27, 12 December 2015 ( UTC)
• 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.
• 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.