Ok, I have a sandbox lpar.
WRKCFGSTS CFGTYPE(*CTL) CFGD(*VWS)
Vary off and delete all that I can.
Down to:
Description       Status 
QPACTL02          ACTIVE 
  QPADEV0001      ACTIVE  (My session)
VWS               ACTIVE 
  EMLPDF          VARY ON PENDING
  PSYS            VARY ON PENDING
  P13S07          VARY ON PENDING
WRKCFGSTS CFGTYPE(*DEV) CFGD(*VRTDSP)
kill until I am down to:
Description       Status                -------------Job
QPADEV0001        ACTIVE                QPADEV0001  ROB 
Change QAUTOVRT to
Number of devices to 
  autoconfigure  . . . . . . :   0
Try to start System i Access 5250 session directly to that machine.
Basically it tells me that it's not allowed.
Try telnet from another lpar.  CPF8940 - Cannot automatically select 
virtual device.
Try telnet from DOS prompt.  Tries, but comes back to prompt with no error 
message.
DSPMSG QSYSOPR has a few
CPF87D7-Cannot automatically select virtual device.
Working As Designed:  However, on obsolete unsupported systems I remember 
this always wasn't the case and I had to rename the command CRTDEVDSP to 
finally get it to work.  This lpar is on 7.1.
Change QAUTOVRT to
Number of devices to 
  autoconfigure  . . . . . . :   200
Now I can connect via all three methods.
Some things changed with V5R2 and beyond.  For example:
http://www-01.ibm.com/support/docview.wss?uid=nas193e40de301a1e0a086256fb8006a93ee
See also "Telnet security"
http://publib.boulder.ibm.com/infocenter/iseries/v5r4/topic/rzaiw/rzaiwusracc.htm
Rob Berendt
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