Oki 6200E manual Address Formats, Configuration Files

OkiLAN 6200e Plus User’s Guide

do not know their IP address. When powering up on a network, a device that uses RARP broadcasts its net- work hardware address in a RARP request message. A RARP server (which may be a UNIX workstation) responds with an IP address. The device then knows its IP address and use this address to perform subse- quent TCP/IP transactions.

Note: Once the Network Print Server has been assigned an IP address, the Network Print Server configuration utility (which is accessed by telnet- ing to the Network Print Server) or OkiNet for TCP/ IP allows you to change and/or make the IP address permanent. This means that a RARP server needs to be available only during installa- tion of the Network Print Server.

Address Formats

Network hardware addresses are 48-bits and are expressed in 6 bytes in hexadecimal format usually separated by colons. Each hexadecimal byte has a range from 00 to FF.

Example: 00:02:16:17:50:A4

IP addresses are 32-bits and are expressed in 4 bytes in decimal format usually separated by periods. Each decimal byte has a range from 0 to 255.

Example: 192:168:42:55

Configuration Files

The purpose of RARP is to look up a 32-bit IP address given a 48-bit network hardware address. The RARP server (which is usually a UNIX workstation running a rarpd daemon) performs this function using two config- uration files and one or more daemons. The configura- tion files are “/etc/hosts” and “/etc/ethers” and the

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