From owner-freebsd-questions Sat Feb 15 05:26:26 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id FAA24157 for questions-outgoing; Sat, 15 Feb 1997 05:26:26 -0800 (PST) Received: from out2.ibm.net (out2.ibm.net [165.87.201.252]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id FAA24152 for ; Sat, 15 Feb 1997 05:26:24 -0800 (PST) Received: (from uucp@localhost) by out2.ibm.net (8.6.9/8.6.9) id NAA59818; Sat, 15 Feb 1997 13:26:21 GMT Received: from slip129-37-221-141.ny.us.ibm.net(129.37.221.141) by out2.ibm.net via smap (V1.3mjr) id sma7JcCrx; Sat Feb 15 13:26:11 1997 Message-ID: <3305B94F.6FC5@ibm.net> Date: Sat, 15 Feb 1997 08:25:35 -0500 From: "John R. Martz" Organization: Pre-installed Company X-Sender: "John R. Martz" (Unverified) X-Mailer: Mozilla 4.0b1 (Win95; I) MIME-Version: 1.0 To: Joe McGuckin CC: questions@freebsd.org Subject: Re: tn5250 ! X-Priority: Normal References: <199702140734.XAA22935@monk.via.net> Content-Type: multipart/alternative; boundary="----------116F59AD11EE0" Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk ------------116F59AD11EE0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii Joe McGuckin wrote: > > Does anyone know how a tn5250 session differs from a regular telnet > session? I'm trying to persuade a tn5250 emulator to work with the > fwtk telnet proxy. Joe, I'm a bit confused at what you're trying to do. The tn5250 protocol is most usually used to talk to an AS/400. It's an adaptation of the 5250 protocol used to connect display stations (i.e. intellectually challenged terminals) to AS/400 via twinax. Are you trying to connect to another PC that has a 5250 emulator in it via twinax? (Hope not ... don't think this would be easy). If you're trying to connect to AS/400 just start TCP/IP and the telnet server on the 400 and connect that way. AS/400 telnet prefers to use tn5250, but it'll also talk tn3270 and then VT220 and VT100. > Is there source to a tn5250 program available somewhere? I don't know of any tn5250 source code that's available to the public. If you want more info on tn5250 there is an RFC for it: http://ds.internic.net/rfc/rfc1205.txt You might also get more information at the News/400 magazine web site: http://www.news400.com. In particular they have a white paper posted at their site with the title "The Evolution of TELNET 5250 (TN5250)", http://www.news400.com/education/WhitePapers/Telnet/Index.html It sounds interesting and I keep meaning to actually read it some day ... :-) Other AS/400 web sites are: http://www.as400.ibm.com and http://www.midrangecomputing.com/ Hope this helps, -john martz ------------116F59AD11EE0 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=us-ascii

Joe McGuckin wrote:
>
> Does anyone know how a tn5250 session differs from a regular telnet
> session? I'm trying to persuade a tn5250 emulator to work with the
> fwtk telnet proxy.

Joe, I'm a bit confused at what you're trying to do. The tn5250 protocol is most usually used to talk to an AS/400. It's an adaptation of the 5250 protocol used to connect display stations (i.e. intellectually challenged terminals) to AS/400 via twinax.

Are you trying to connect to another PC that has a 5250 emulator in it via twinax? (Hope not ... don't think this would be easy).

If you're trying to connect to AS/400 just start TCP/IP and the telnet server on the 400 and connect that way. AS/400 telnet prefers to use tn5250, but it'll also talk tn3270 and then VT220 and VT100.

> Is there source to a tn5250 program available somewhere?

I don't know of any tn5250 source code that's available to the public. If you want more info on tn5250 there is an RFC for it: http://ds.internic.net/rfc/rfc1205.txt

You might also get more information at the News/400 magazine web site: http://www.news400.com. In particular they have a white paper posted at their site with the title "The Evolution of TELNET 5250 (TN5250)", http://www.news400.com/education/WhitePapers/Telnet/Index.html

It sounds interesting and I keep meaning to actually read it some day ... :-)

Other AS/400 web sites are: http://www.as400.ibm.com and http://www.midrangecomputing.com/

Hope this helps, -john martz

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