🚀 go-pugleaf

After much dismay and frustration in the attempt to "upgrade" from a FastPath 3 to a FastPath 4, I have finally come up with a scheme that is working very well.

Our setup:
		Sun 3/50 as a file server (4.2 BSD - Release 3.5)
			(129.74.6.8  ndcheg.cheg.nd.edu)
		CAP 5.0 (AUFS, lwsrv, papif)
		KIP 06/88 (atalkad -- reading /etc/atalkatab)
		K-STAR Download (v5.0.3) on FastPath 4 (129.74.6.193 / PROM 4.1)
		LaserWriter located on appletalk side

Many of the symptoms encountered during the upgrade typically involve atlook notbeing able to see any hosts on the appletalk side. Telenet services work fine  
but AppleShare services do not. Other symptoms include services appearing 
intermittently, or possibly having AUFS and Telnet functioning but not being
able to locate devices (such as printers) on the appletalk side.

My /etc/atalkatab

55.6	N1	129.74.6.0	Ethernet	#ms ob
56.1	K	129.74.6.193	apple-cheg	#chem.eng.appletalk
	I129.74.6.193	I129.74.6.8		#ipbroad ipname
	I129.74.6.8	L0			#ipdebug ipfile
	L0 L0 L0 L0	S0	S0		#ipother unused ddprangestart
	LX0		S6	S10		#flags ipstatic ipdynamic
	S56.1	S55.6		"Ethernet"	#atneta atnete zonea

NOTE:  K-STAR v5.0.3 and earlier were implemented using the old UDP port
	numbers (starting at 768), while in April 1988, NIC assigned UDP port
	numbers ranging from 200 to 328 to be used by KIP.  This has been
	a major source of configuration problems.  Since we are using K-STAR
	v5.0.3, our ddpstartrange has been set to S0 (i.e., 768 by default).

	Kinetics has now released K-STAR v7.0 which allows the newer
	ddpstartrange of 200.  Call Kinetics technical support at
	1-415-947-0998.

	Additionally, recall that CAP 5.0 allows the use of the newer port
	range by installing entries in /etc/services for use by the getservent.
	Be sure to remove these entries if configuring with a version of K-STAR
	5.0.3 or older.


My /etc/atalk.local

	# mynet mynode myzone
	55.6 8 Ethernet
	# bridgenet bridgenode bridgeIP
	55.6 193 129.74.6.193


FastPath 4 Configuration: (using FastPath Manager II v4.1)
----------------------------------------------------------------------------
Download File: K-STAR v5.0.3

Configuration: K-STAR

LocalTalk Side
AppleTalk Zone Name	apple-cheg
AppleTalk Net Number	14337
AppleTalk Node Number	220			#dynamically assigned

Ethernet Side
AppleTalk Zone Name	Ethernet
AppleTalk Net Number	14081			#NOTICE: This 16-bit number
						 should actually be 14086. More
						 on this later.
AppleTalk Node Number	230			#dynamically assigned


IP Information
IP Address of FastPath Box	129.74.6.193
IP Subnetwork Mask		255.255.255.0
IP Broadcast Address		0.0.0.0
IP Address of Default Router	0.0.0.0

Administrator	
IP Address of Administrator Host 	129.74.6.8

UDP Side
AppleTalk Zone Name		*
AppleTalk Network Number	0
AppleTalk Node Number		193

Servers
IP Address of Name Server	0.0.0.0
IP Address of File Server	0.0.0.0

Local Parameters
Parameter #1	0.0.0.0
Parameter #2	0.0.0.0
Parameter #3	0.0.0.0
Parameter #4	0.0.0.0

Option Flags:  None are set.

Switches
Auto Config	No
Remote Boot	Yes

Table Sizes
Dynamic Addresses	10
Static Addresses	6

-------------------------------------------------------------------------------

When we tried to specify the UDP side with the same inforamtion as the Ethernet
side, AUFS worked fine, along with Telnet, but we could not print from Ethernet
to the LocalTalk LaserWriters. 

Putting in the IP Broadcast Address caused 
problems on the LocalTalk side that weren't readily apparent.  Although all 
LaserWriters would appear in the chooser, an NEC SilentWriter would not print
on a regular basis.  It would signal that it was processing the document, but 
no file would would actually print.  (We have had other problems with this 
LaserWriter in the past -- seems to be very sensitive to problems in the 
network.)

When the "correct" AppeTalk Net Number (Ethernet Side) is used (i.e., 14086
for our case), atlook can no longer locate hosts on the localtalk side!!
LaserWriter services are no longer functional when attempting to print from
Ethernet to a LocalTalk LaserWriter.  Although AUFS and Telnet work good.    


I have tried numerous combinations in the attempt to get all desired services
working -- the final configuration that finally worked was obtained more by
persistance and chance, rather than anything that makes sense.


For our functional configuration, the following occurs:  
Running look on the LocalTalk side, gives an "incorrect" AppleTalk internet
connectivity as reflected by the RTMP packets:

	00 12 01   01 01 38   01 08 DC   38 01 00   37 01 00   37 06 00

trans: 	 0 18  1    1  1 56    1  8 220  56.1  0    55.1  0    55.6  0

	The incorrect packets are the set of three that are second from the 
	last (37 01 00).  These resulted from the the AppleTalk Node Number
    	on the Ethernet side being specified as 14081 instead of the "correct"
	value of 14086.  When we do use 14086, the RTMP packets reflect 
	AppleTalk internet connectivity as it should theoretically be, but
	as I mentioned previously, this did not work for us.


Listed below are some attempts that failed:

1.	SetUp:

	FP Manger (v2.0)	
	gw.srec
	prompt.config (with correct ethernet address)
	ddpstartrange = 200

	Result: All services show up, but localtalk side especially           
	intermittent.  Effects all localtalk hosts, including localtalk TOPS
	servers and clients.

2.	SetUp:	

	Same as 1, but ddpstartrange = 768

	Result: essentially the same as 1. (This setup has been reported to 
	work for others, but did was not satisfactory in our case.)

3.	SetUp:

	FP Manager II (v4.1)
	gw.srec
	promt.config

	Result: No localtalk laserwriters even appear in the chooser.  Other
	services available but intermittent.

Hope this gives some useful insight.


Richard Pigeon
pigeon@ndcheg.cheg.nd.edu

University of Notre Dame
Dept. of Chemical Engineering
Notre Dame, IN 46556