NCSA Telnet Digest Thursday, 10 Dec 1987 Volume 1 : Issue 10 Today's Topics: tabs and fonts tn3270 for NCSA Telnet - show of hands Telnet problems on Mac SE with Kinetics Etherport feature/bug feature ---------------------------------------------------------------------------- From: Charlie C. Kim Date: Tue, 17 Nov 87 17:39:30 EST Subject: tabs and fonts It turns out that tabs should be nondestructive... The problem I was seeing was due to another problem where [2K would not correctly erase to the end of line. On another note, I've noticed that zero and uppercase "o" and lowercase "l" and uppercase "i" are exactly the same... While I realize that this is an attribute of the font being used (Monaco), I was wondering if there was a better fix than: (a) modify it in your system (b) include a modified copy of Monaco in Telnet... I would fix it as: make upper case "i" have "serifs" or danglers on the top and bottom put a dot in the middle of zero - except in bold face zero which needs more - put dots on the upper right and lower left as well as in the middle to make it look like it has a slash through it... Charlie ---------------------------------------------------- From: emv@pepe.cc.umich.edu (Edward Vielmetti) Subject: tn3270 for NCSA Telnet - show of hands Date: Wed, 18 Nov 87 00:12:04 EST I know sources have only been out for a short while, but has anyone started work on a tn3270 application based on ncsa telnet? Edward Vielmetti emv@umix.cc.umich.edu U-Michigan Computing Center Ann Arbor MI 48109 {uunet,rutgers,msudoc}!umix!emv ---------------------------------------------------- From: "Mike Gerard CERN-DD (JMG AT CERNVAX)" Subject: Telnet problems on Mac SE with Kinetics Etherport Date: 26 Nov 87 14:56 +0100 I know that you will want to know the version of NCSA telnet: I don't have it because the Mac I was using has been taken away to replace the Kinetics board (monitoring with an Excelan Lanalyzer showed it could not send out packets at a high rate without crc errors, short packets etc.). However, I believe the questions are relevant. Having done the installation of the Kinetics driver, set ethernet and internet addresses etc., when I start up NCSA telnet (on a mini-Ethernet on which the only other computer is a Lanalyzer in promiscuous mode!!!) the following packets go out:- 1. arp broadcast with source ip 0.0.0.ff, looking for 0.0.0.7f 2. broadcast with type 80f3 (?) 3. arp broadcast with source ip 0.0.0.7f, looking for 0.0.0.7f !!!! These three are repeated immediately (interval of about 3ms) about 20 times, making 60 broadcast packets in 200ms!). Then immediately follows 4. 2 broadcasts type 809b, one after the other, contents not meaningful to me. 5. 4 broadcasts type 809b at intervals of 400ms, containing "IPGATEWAY". Then a lot later there are the arps looking for the host that I wanted, at decent intervals of 1 or 3 seconds. These last arps DO have the correct internet source address. I know that I may not have read the documentation as well as I ought, and we may even be missing useful documents, but the above is a bit of a mystery to me. Can you help. I must also admit that I spend my time trying to tell implementers of software products that: a. I like to minimise the number of broadcast packets. b. Never broadcast if you can multicast (at least one of the Kinetics test programs throws out vast numbers of broadcasts: not your fault). c. There is almost never an excuse for high-rate repetition of identical broadcasts. Best regards, Mike Gerard [ Ed Note- [ I don't want to sound like I am passing the buck, but I feel obligated [ to tell you that the cause of 1,2,3, and 4 are all from the Kinetics [ software. In order to exist on the ethernet, they chose some rather [ unorthodox methods of addressing their boxes (and machines which run [ the SC or SE boxes/cards. Their method includes arping for 0.0.0.x. [ Further, the packets of types 80f3 and 809b are AppleTalk encapsulated [ in EtherNet headers. [ - Gaige ] -------------------------------------------------------- From: timk@newton (Tim Krauskopf) Subject: feature/bug feature Date: Fri, 11 Dec 87 11:40:09 CST If there is a long pause in the telnet mailing list as there has been recently, we will be throwing in some "feature/bug" updates. These will explain some small details which we have been getting questions about. Feature/bug update from NCSA (Mac version): NCSA Telnet for the Mac version 2.1 has a companion 2.1E which runs over EtherTalk on a Mac II with an EtherTalk card. Kinetics will soon be providing an EtherTalk driver for their Etherport SE and EtherSC products that we have also tested on. Use 2.1 for AppleTalk, 2.1E if you have EtherTalk. LaserWriter 5.0 bug - Upgrading to LW 5.0 drivers will cause "print selection" to produce garbage on your printer if there were any blank lines in the selected text. Imagewriter printing still works. We will be able to work around this in later versions, but for now, you may want to load a MultiFinder partition with MSWord or TeachText to paste into and use it for printing on a LaserWriter. Tim Krauskopf NCSA