Avery Dennison 9840 Technical Reference Manual - Manual (Page 74)

4-4 IP Address Assignment
What is Bootp?
Bootp stands for Bootstrap Protocol. Every TCP/IP network device is
required to have a unique 32-bit IP address assigned to it. IP addresses can
usually be configured. TCP/IP network devices that are running on Ethernet
or Token Ring have a 48-bit hardware address. Hardware addresses usually
cannot be configured and are "hard coded" by the manufacturer of the
device. Bootp is a protocol used by devices that "know" their hardware
address, but do not "know" their IP address. When powering up on a
network, a device that uses Bootp will broadcast its hardware address in a
boot request packet. A Bootp server will respond with an IP address. The
device will then "know" its IP address and use this address to perform
subsequent TCP/IP transactions.
Why use Bootp?
Monarch print servers use the Bootp process to assign their IP address
because there are no switches or a control panel for entering an IP address
by hand.
The Bootp Server only needs to be running when a device
is powering on. If the IP address has been set
permanently on a device (via the configuration utility) then
the Bootp Server doesn't need to be running at all.
B o o t p F e a t u r e s I m p l e m e n t e d
The Bootp standard specifies many settings that a Bootp Server can send in
a Boot response packet. This Bootp Server has only implemented those
features that pertain to Monarch print server devices. Those features are:
♦ Setting the IP address
♦ Setting the subnet mask (optional)
♦ Setting the gateway IP address (optional)