Motorola MVME177, Installation And Use Manual, Page: 101 / 171

Disk I/O Support
B-21
B
RARP/ARP Protocol Modules
The Reverse Address Resolution Protocol (RARP) basically consists
of:
❏
An identity-less node broadcasting a ÒwhoamiÓ packet onto
the Ethernet
❏
The node awaiting an answer
❏
The RARP server filling an Ethernet reply packet with the
target's Internet Address
❏
The RARP server sending it to the node
The Address Resolution Protocol (ARP) basically provides a
method of converting protocol addresses (e.g., IP addresses) to
local area network addresses (e.g., Ethernet addresses). The RARP
protocol module supports systems which do not support the
BOOTP protocol (next paragraph).
BOOTP Protocol Module
The Bootstrap Protocol (BOOTP) basically allows a diskless client
machine to discover:
❏
Its own IP address
❏
The address of a server host
❏
The name of a file to be loaded into memory and executed
TFTP Protocol Module
The Trivial File Transfer Protocol (TFTP) is a simple protocol to
transfer files. It is implemented on top of the Internet User
Datagram Protocol (UDP or Datagram) so it may be used to move
files between machines on different networks implementing UDP.
The only thing it can do is read and write files from/to a remote
server.