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Apple LaserWriter 12/640 PS User Manual

Page 248

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m Check the

/etc/bootptab

file to verify

m that the

ip

entry is a valid IP address and that it matches the address in

the

/etc/hosts

file

m the

ha

entry is the correct Ethernet address (found on the printer’s

startup page) with no colons separating the bytes

m the

ht

entry is either

ether

or

ethernet

m Turn the printer on and off and immediately verify that the

bootpd

is

running. On many UNIX systems, you can accomplish this by typing

ps -e

or

ps -ax

at the UNIX prompt on the server. If the daemon is

not running, type

bootpd -t15

or consult the UNIX man page on

bootpd

.

m Turn the printer off and then back on.

I can’t

ping

the printer by IP name or IP address.

Follow these steps in order:

m

ping

your own system or another host. If this

ping

fails, your IP

software is not running, or your network is down.

m Turn the printer off and then back on. This sometimes fixes the problem

itself, and it also causes the startup page to print. Use the startup page to
verify the printer’s IP address.

m Verify that the IP address on the configuration page is identical to the IP

address in the

/etc/hosts

file.

m Check the printer’s network cabling to make sure that it is connected to the

network.

m Make sure the IP address is not a duplicate of one already in use on the

network.

I can

ping

the printer, but I can’t

telnet

to it.

Only one user at a time can

telnet

to the printer.

248

Chapter 12