Subject: [netatalk-admins] LPR-printing, LW 8.5.1, 68k (ause of this list)
From: Thomas Tornblom (Thomas.Tornblom@Hax.SE)
Date: Fri Mar 05 1999 - 18:11:16 EST
Greetings.
I know that this list deals with netatalk, but bear with me. netatalk is also
involved.
I have tried to find someone who has tested LPR-printing with LaserWriter 8.5.1
on a 68k Mac, but sofar gotten zero responses from people that has actually
tested it.
I have it working great on a G3, but I can't get it to work on an old LC-475.
Both running 8.1 and LW 8.5.1.
Message posted to Apple Tech Exchange:
---------
Subject:
LPR-printing on 68k Mac, LW 8.5.1
Author:
Thomas Törnblom
Posted:
Thursday, 3/4/99
5:17 AM CST
Email:
thomas@hax.se, thomast@sun.se
Model:
LC-475
System S/W:
Mac OS 8.1
Category:
Mac OS 8.0/8.1
Does this work?
I have an old LC475 (chipped to 33MHz) running 8.1 and/or 7.5.5.
I also have a G3 running 8.1
I have tried to get LPR-printing to work, and the G3 has no problems,
but I can't get it to work on the 68k Mac.
I have a SparcStation (Solaris 7) that has all the printers, and all
other systems spool to this one.
I have used netatalk a long time for this, but now that LaserWriter
8.5.1 supports printing over LPR I thought I'd switch over to it.
I have among other things a printer called "dw550c". When I configure
it with this name on the Mac, my Sun complains that it can't find the
printer "dw550". Notice that the trailing "c" is lost!
I have snooped sessions from both Macs and compared them, and I see
that the 68k Mac sets the TCP-URG bit in all packets pertaining to the
control file. The urg pointer points at the last character in the
packet, which then becomes lost.
I have aliased the printer as "dw550", and then I get a complaint on
the packet containing the LPR sequence number, which is also
corrupted. It does however feed the data over to the Sun, and those
packets does *not* have URG set. The Sun has long ago determined that
the job is broken and tosses it.
An excerpt from snoop:
---
TCP: ..1. .... = Urgent pointer
TCP: ...1 .... = Acknowledgement
TCP: .... 1... = Push
TCP: .... .0.. = No reset
TCP: .... ..0. = No Syn
TCP: .... ...0 = No Fin
TCP: Window = 17520
TCP: Checksum = 0x4c16
TCP: Urgent pointer = 7
TCP: No options
TCP:
PRINTER: ----- PRINTER: -----
PRINTER:
PRINTER: "\2dw550c\n"
---
Has anyone got this to work on a 68k Mac?
8.1 or 7.5.5 makes no difference. For some (unknown) reason I can't
get the Mac to use Classical Networking.
The Mac has absolutely no problem with other TCP/IP applications.
--
---
Real life: Thomas Törnblom Email: Thomas.Tornblom@Hax.SE
Snail mail: HB Hax Phone: +46 18 290 290
Banvallsvägen 14 Fax: +46 18 290 291
S - 754 40 Uppsala, Sweden Cellular: +46 73 986 6318
This archive was generated by hypermail 2b28 : Sat Dec 18 1999 - 16:16:24 EST