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D-View 5.1 User's Guide
environment. Each network device attached to this environment must have a unique IP
address in order to send and receive data packets from other network devices. Some
network devices such as intelligent hubs and bridges come with EEPROMs for storing
configuration values including IP addresses; others such as diskless workstations are
incapable of storing such information, thus they depend on the BOOTP server for these
values.
When the management console (acting as a BOOTP server) receives a BOOTP request, it
checks the MAC address of the device that sent this request. The system then looks up
this MAC address on the BOOTP table; if such address exists, the system returns to the
requesting device the assigned IP address for that MAC address; if the address does not
exist, the system displays a message on the management console screen prompting the
network administrator to assign an IP address for this request. After assigning an IP
address, the entry is then added on the table for use on subsequent request from the
device. The BOOTP table is stored in the hard disk of the management console, and can
be updated any time by the network administrator. In addition to the IP address, each
entry in the BOOTP table can also furnish other information relevant to network
communication. These include the gateway address, the file server address, and the
subnet mask.
To enable the BOOTP server function of the management console, choose Bootp Server
from the Tools menu. The BOOTP Server dialog box appears on the screen signifying
that the management console is now operating as a BOOTP server. The management
console will start receiving BOOTP requests from the network; if it receives a request, it
checks the table for the required information and sends them to the requesting device;
if the entry does not exist, the program displays the Add/Modify BOOTP Table Item
dialog box on the screen:
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