Re: special characters

Lets see if I understand this correctly....

   a) You use tn5250 to get to your AS/400.
   b) Use use passthru (over SNA?) to get to a remote AS/400.
   c) You use the "TELNET" client on the remote AS/400 to 
         log onto a router.
   d) While on the router, you need to be able to send ESC
         to the router.


This doesn't sound like a TN5250 issue to me -- it sounds like an AS/400
telnet client issue.   

I don't have a remote AS/400 to use passthru with, but... if I tn5250 to
my AS/400, and then TELNET to another Unix box, this is what I need to do
to send escape:

Hit ATTN (ctrl-A in TN5250)
Select "6. Change VT100 (Primary) keyboard map"

Look for a function key that is mapped to "*ESC".   On my system, I have
F5 mapped to *ESC, yours may be different.  It should look something like
this:

   Function Key 5  . . . .   *ESC                                    

(You can change your function keys to suit your needs.)  

Now that I know that pressing F5 will send ESC, I hit F3 to get out
of the VT100 keyboard map screen, and simply hit F5 whenever I want
to send ESC.

Another idea:

If you prompt the TELNET command from your OS/400 command line (type
?TELNET)  you'll see that there are "Additional Parameters" to the
telnet command.   Press F10 to see what they are, and you'll see that
there is a 'Control character key'.  By default, it's set to the '&'
character.

What this means is that if I want to send Ctrl-T to the remote system, I
can simply type '&T' during my telnet session, and it'll send Ctrl-T.

All of these fun AS400 -> VT100-style workarounds should be documented in
the TCP/IP Configuration & Reference manual (SC41-5420):

http://publib.boulder.ibm.com:80/cgi-bin/bookmgr/DOCNUM/SC41-5420-03


Does this help, or am I completely off track?


On Tue, 6 Feb 2001, Sean Porterfield wrote:

> Is it possible to send characters such as Escape or CTRL-T through
> tn5250?  I do a passthru to a remote AS/400 and need to telnet to a
> router.  Unfortunately, the AS/400 telnet program is screen based, not
> character based.  I get stuck in router menus if I can't send Escape
> (CTRL-T would work, but Escape is better for me.)  Any chance of this
> happening?
> 
> TIA!

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