Apple LaserWriter 12/640 PS - Manual (Page 337)

The BOOTP server is not responding.
If you chose to use a BOOTP server to assign the printer’s IP address while
setting up the printer, but the server is not responding, follow these steps
in order:
m Make sure that the server running BOOTP is on the same subnet as the
printer or that BOOTP is properly configured to run on multiple subnets.
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.
312 Chapter 13