5250 choices

Telnet user exits will allow you to specify a "program to call" for any
incoming IP address you desire.  So if you can tell an IP address is not in
your local network (i.e., a dial-up), you can have the special limiting
program run at connect time (skip over the sign-on panel, kicks off the
program directly).  There is sample code and info at the following:

  http://www.as400.ibm.com/tstudio/tech_ref/tcp/indexfr.htm

This support is based on the TN5250E specifications which can be found at
the following:

  AS/400 Telnet Server TN5250E Draft RFC
  --------------------------------------
  http://www.ietf.org/ids.by.wg/tn3270e.html
 
  Look for the draft titled "5250 Telnet Enhancements",
  by Thomas Murphy, Paul Rieth, Jeffrey Stevens,
  05/21/1998. (71611 bytes)

The following PTF's would also be needed to install this support onto your
AS/400.  I have listed two tables, one with the initial PTF's that first
cut in this support, and another table showing the most recent superseded
PTF, corresponding to the initial PTF's.  I've listed the supersedes purely
as a convenience, but you should get them to bring your Telnet service
"current".

                   TELNET TN5250E Backfit PTF's
 
           +-----------+-----------+-----------+-----------+
           |   V3R2    |   V3R7    |   V4R1    |   V4R2    | Supersede
+----------+-----------+-----------+-----------+-----------+ PTF's
| 57xx-SS1 |  No SS    |  SF47406  |  SF49335  |  In Base  |
|          |  No SS    |  SF49317  |  SF49335  |  SF49336  |
+----------+-----------+-----------+-----------+-----------+
| 57xx-999 |  No SS    |  MF19275  |  MF19274  |  MF19494  |
+----------+-----------+-----------+-----------+-----------+
| 57xx-TC1 |  No SS    |  SF48909  |  SF48910  |  SF48390  |
|          |  SF47712  |  SF47713  |  SF47714  |  SF47715  |
+----------+-----------+-----------+-----------+-----------+
 
           +-----------+-----------+-----------+-----------+
           |   V3R2    |   V3R7    |   V4R1    |   V4R2    | Initial
+----------+-----------+-----------+-----------+-----------+ PTF's
| 57xx-SS1 |  SF49121  |  SF46693  |  SF47990  |  In Base  |
|          |  SF49565  |  SF47030  |  SF48012  |  SF46155  |
+----------+-----------+-----------+-----------+-----------+
| 57xx-999 |  MF19563  |  MF18448  |  MF18869  |  MF18061  |
+----------+-----------+-----------+-----------+-----------+
| 57xx-TC1 |  SF49564  |  SF47007  |  SF47602  |  SF46013  |
|          |  SF46542  |  SF46543  |  SF46544  |  SF45762  |
+----------+-----------+-----------+-----------+-----------+
 
Caveat:  These PTF's listed are the initial PTF's for TN5250E
         support, and may have been superseded since they
         were first released.  A superseding PTF can be used
         in place of any one of the listed PTF's here.

> Date: Wed, 8 Jul 1998 17:44:52 -0500
> From: Joe Teff <jteff19@idt.net>
> Subject: 5250 choices
> 
> We need to allow many customers to dial up to an AS/400 (V4R2). We will be 
>giving them
> a menu with a few options. They will be controlled by the program, so they 
>can only run
> the options on the screen. I need to give these people 5250 emulation, but no 
>extras like file
> transfer, etc. I have heard of TN5250, but have never used it so I do not 
>know if this is my
> answer. Does anyone have any recommendations or solutions? This will be dial 
>up and not
> internet. Thanks.
> 
> Joe Teff
> Information Technology Consultant
> IBM Certified Specialist - AS/400 RPG Programmer
> Quality Data Systems
> Minneapolis, MN

-- 
J.S. (Jeffrey) Stevens      AS/400 TCP/IP          (Telnet/WSG/LPD)
Work:  jssteven@us.ibm.com        Personal:  jstevens@stny.lrun.com
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