Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!rpi!julius.cs.uiuc.edu!apple!agate!ucbvax!INFOODS.MIT.EDU!KLENSIN From: KLENSIN@INFOODS.MIT.EDU (John C Klensin) Newsgroups: comp.protocols.ibm Subject: Re: 3270 Emulation Message-ID: <9011010923.AA06228@lilac.berkeley.edu> Date: 1 Nov 90 03:24:52 GMT Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: John C Klensin Organization: The Internet Lines: 40 > I am trying to TELNET to an IBM mainframe with a TELNET program called >TN3270. It is supposed to tell the mainframe what kind of terminal I am using. Unless this is a very unusual version of the many things called TN3270 or names like that, no. The only thing it "tells the mainframe" is that it is a network 327x. It is up to your host to make the right mapping for it, and for someone there to tell you what the mappings are. I hope that is not a recursive reference. :-) Many, if not most, versions of 3270->telnet programs (the TN3270 family) support their own keymapping programs (on *your* host, not the mainframe) so the mapping of, e.g., VT100 keys to 3270 keys is variable from originating host to originating host. >I have a terminal program for my computer that is VT100 compatilbe, but the >mainframe I am getting on to has no keymap for a VT100. 'course not. It speaks 3270 or serial line mode (you don't want to find out about that), or to a device that speaks 3270. Unless you telnet to one of those devices (often called by numbers like 7171), rather than the mainframe, you are not going to get the remote to speak VT100. >When the mainframe >puts "MORE .." in the lower right hand corner, I am stuck because I don't have >the button to go on. What button on a 3270 goes on and what ASCII sequence >does it send. I think it is the CLEAR button, but I really don't know. Can >anyone help me??? You are, in fact, looking for "CLEAR", and, on a 327x, that is a key with that label. The default for at least some versions of TN3270 is control-Z. You are going to need several other keys as well--the 12 or 24 PF keys, two PA keys, the key marked "INS", and the key marked "NewLine" (which is different from "Enter", which is usually bound to the VT100's "return")--at least. With CLEAR, you may be able to experiment, but you will probably find it useful to find either a manual or a copy of your local mapping table, and read same. --john klensin Klensin@MIT.EDU p.s.: Cute signatures and the fact that you don't know how to spell "gallant" aside, we have no idea who you are, since messages from IBM-NETS tend to arrive without the author identified in the header. Many of us prefer to know, by conventional name, email address, and possibly affiliation, whose questions we are answering. -------