Xref: utzoo comp.sys.mac.comm:1152 comp.protocols.appletalk:4398
Newsgroups: comp.sys.mac.comm,comp.protocols.appletalk
Path: utzoo!utgpu!cunews!bnrgate!bnr.ca!bschmidt
From: bschmidt@bnr.ca (Ben Schmidt)
Subject: Re: Using NCSA Telnet with Apple Internet Router
Message-ID: <1990Oct2.230027.23267@bnrgate.bnr.ca>
Sender: news@bnrgate.bnr.ca (USENET News System)
Organization: Bell-Northern Research
References: <1990Oct2.050129.20610@monu6.cc.monash.edu.au>
Date: Tue, 2 Oct 90 23:00:27 GMT

In article <1990Oct2.050129.20610@monu6.cc.monash.edu.au> 
sci213v@monu6.cc.monash.edu.au (mr  p    freeman) writes:
> We have a LocalTalk network of 6 macintoshes connected using PhoneNet.  
> One of these Macs (an SE/30) has a NuvoTech SCSI/Ethernet adapter and
> is connected to our Universities ethernet backbone and then to the
> Internet.  The ethernet connected Mac is running Apple Internet Router
> as well.
> 
> What I want to be able to do is to allow LocalTalk Macs to talk to the
> ethernet connected mainframes (Unix) and also the Internet via the
> ethernet connected Macintosh.
> 
> This isn't a problem for the Mac connected directly connected to
> Ethernet of course.  I understand that Internet Router should allow me
> to do this but I am having problems using Telnet  - I don't seem to be
> able to get any response from the ethernet connected Unix machines.
> The Mac SE/30 is fine but not the LocalTalk connected Macs.  ANy
> ideas?  Is it my config.tel file for Telnet or is this just not
> possible.
> 
> In the config.tel file of the LocalTalk Macs I have set
> hardware=AppleTalk. The ethernet connected mac is in the same zone as
> the other LocalTalk macs. I am using NCSA Telnet 2.3 (not the MacTCP
> version)

Hmm...your transfer rates sound more like LocalTalk than Ethernet.  NCSA 
telnet is optimized for telnet not ftp (or so the net lore goes...)  If you're 
using the non-MacTCP version you can ensure that the message transmit unit 
size is set to a kilobyte, and try setting the window to about 4 kbytes.  
(LocalTalk packets or IP in DDP can't get that big so the default mtu and 
rwin are usually around 512 bytes.)  

If you're on MacTCP it auto-magically  "does the right thing" and you're 
out of luck as far as twiddling the bits.  {Sigh!  Apple please put in an 
access door into your s/w - we promise to leave the default settings most 
of the time!   :^)   }

Want still more speed?  Enter TCP/Connect II.   Gaige says he's enhanced 
the ftp transfer rate 
on the non-MacTCP version.  Give him a shout.

Ben Schmidt              Bell-Northern Research, Ltd.    Ph: (613) 763-3906
Information Technology     P.O. Box 3511, Station C      FAX:(613) 763-3283
bschmidt@bnr.ca         Ottawa Ontario Canada K1Y 4H7