ENWW TCP/IP Overview 89
Configuring IP Addresses
TCP/IP configuration parameters (such as IP address, subnet mask,
default gateway) can be configured on the HP Jetdirect print server
in a variety of ways. These values can be configured manually
through HP-supplied software, or they can be automatically
downloaded using DHCP or BOOTP each time the print server is
turned on.
Dynamic Host Configuration Protocol (DHCP)
DHCP allows a group of devices to use a set of IP addresses that are
maintained by a DHCP server. The device or host sends a request
to the server, and if an IP address is available, the server assigns
it to that device.
BOOTP
BOOTP is a bootstrap protocol used to download configuration
parameters and host information from a network server. BOOTP
uses UDP for its transport. In order for devices to boot and load
configuration information into RAM, they must communicate
through the bootstrap protocol BOOTP as a client with their server.
To configure the device, the client broadcasts a boot request packet
containing at least the hardware address of the device (HP
Jetdirect
print server hardware address). The server answers with a boot
reply packet containing the information the device needs
to
configure.
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