TELNET CONNECTIONS MAY HANG WHEN NOTN3270E IS SPECIFIED

 
 APAR Identifier ...... PI74764      Last Changed ........ 17/03/28            
 TELNET CONNECTIONS MAY HANG WHEN NOTN3270E IS SPECIFIED                       
                                                                               
 Symptom ...... IN INCORROUT         Status ........... CLOSED  PER            
 Severity ................... 3      Date Closed ......... 17/03/09            
 Component .......... 5735FAL00      Duplicate of ........                     
 Reported Release ......... 630      Fixed Release ............ 999            
 Component Name TCP/IP V2 FOR V      Special Notice                            
 Current Target Date ..              Flags                                     
 SCP ...................                                                       
 Platform ............                                                         
                                                                               
 Status Detail: SHIPMENT - Packaged solution is available for                  
                           shipment.                                           
                                                                               
 PE PTF List:                                                                  
                                                                               
 PTF List:                                                                     
 Release 540   : UI45539 available 17/03/28 (1000 )                            
 Release 620   : UI45509 available 17/03/28 (1000 )                            
 Release 630   : UI45510 available 17/03/28 (1000 )                            
 Release 640   : UI45511 available 17/03/28 (1000 )                            
                                                                               
 Parent APAR:                                                                  
 Child APAR list:                                                              
                                                                               
 ERROR DESCRIPTION:                                                            
 If the NO3270E option is specified on the INTERNALCLIENTPARMS                 
 statement for the z/VM TELNET server and the SECURECONNECTION                 
 statement specifies SECURECONNECTION PREFERRED, then attempts                 
 to connect to the TELNET server will hang.                                    
                                                                               
 LOCAL FIX:                                                                    
                                                                               
 PROBLEM SUMMARY:                                                              
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 * USERS AFFECTED: All users of the TELNET server               *              
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 * PROBLEM DESCRIPTION:                                         *              
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 * RECOMMENDATION: APPLY PTF                                    *              
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 If the NO3270E option is specified on the INTERNALCLIENTPARMS                 
 statement for the z/VM TELNET server and the SECURECONNECTION                 
 statement specifies SECURECONNECTION PREFERRED, then attempts                 
 to connect to the TELNET server will hang.                                    
                                                                               
 PROBLEM CONCLUSION:                                                           
 If NOTN3270E and SECURECONNECTION PREFERRED options are                       
 specified on the INTERNALCLIENTPARMS statement for the                        
 z/VM TELNET server, the TELNET server does not respond to                     
 the Terminal-Type Option that is receives from the TELNET                     
 client during option subnegotiation for a non-secure                          
 connection. This causes the connection attempt to hang.                       
                                                                               
 TNSTMAS.PASCAL is updated to properly respond during                          
 Terminal-Type subnegotiation. It has also been updated to                     
 makes sure that the Terminal-Type subnegotiation does not                     
 happen until TLS negotiation is completed.                                    
                                                                               
 TEMPORARY FIX:                                                                
                                                                               
 COMMENTS:                                                                     
                                                                               
 MODULES/MACROS:                                                               
 TNSTMAS                                                                       
                                                                               
 SRLS:                                                                         
 NONE                                                                          
                                                                               
 RTN CODES:                                                                    
                                                                               
 CIRCUMVENTION:                                                                
                                                                               
 MESSAGE TO SUBMITTER: