DTCRTD4910E Message When Subnet Mask is Defined 255.255.255.255

 
 APAR Identifier ...... PQ62128      Last Changed ........ 02/06/20
 DTCRTD4910E MESSAGE WHEN SUBNET MASK IS DEFINED 255.255.255.255
 
 Symptom ...... IN INCORROUT         Status ........... CLOSED  PER
 Severity ................... 3      Date Closed ......... 02/06/18
 Component .......... 5735FAL00      Duplicate of ........
 Reported Release ......... 430      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 430   : UQ67368 available 02/06/20 (1000 )
 
 Parent APAR:
 Child APAR list:
 
 ERROR DESCRIPTION:
 RouteD intermittantly issues message:
 DTCRTD4910E rtadd:  SIOCADDRT ioctl failed File exists (EEXIST)
 The message is incorrectly being issued when the host routes
 are configured with subnet masks of 255.255.255.255
 No processing problems occur even though this error message is
 being issued.
 
 LOCAL FIX:
 Additional keywords:
 MT03178
 
 PROBLEM SUMMARY:
 ****************************************************************
 * USERS AFFECTED: All users of RouteD for z/VM                 *
 ****************************************************************
 * PROBLEM DESCRIPTION: When an interface is configured in      *
 *                      RouteD with a 255.255.255.255 subnet    *
 *                      mask, message DTCRTD4910E is received.  *
 ****************************************************************
 * RECOMMENDATION: APPLY PTF                                    *
 ****************************************************************
 When a RouteD is configured with a point-to-point link that has
 a subnet mask of 255.255.255.255, message DTCRTD4910E is
 recieved upon initialization.  This is due to the fact that
 RouteD first adds the host route to the other end of the
 point-to-point link, then attempts to add a subnet route for
 the link.  Because the subnet route is the same as the host
 route (due to the subnet mask), rtadd fails with an EEXIST.
 
 PROBLEM CONCLUSION:
 RouteD has been changed so that it no longer attempts to add
 a subnet route for an interface that is configured with a
 subnet mask of 255.255.255.255.
 
 TEMPORARY FIX:
 
 COMMENTS:
 
 MODULES/MACROS:   ROUTED   RTSTART
 
 SRLS:      NONE
 
 RTN CODES:
 
 CIRCUMVENTION:
 
 MESSAGE TO SUBMITTER: