PROXYARP Does Not Report All IP Addresses In a Supernetwork

 
 APAR Identifier ...... PQ65920      Last Changed ........ 03/12/22
 PROXYARP DOES NOT REPORT ALL I/P ADDRESSES IN SUPERNETWORK
 
 Symptom ...... IN INCORROUT         Status ........... CLOSED  PER
 Severity ................... 3      Date Closed ......... 02/09/18
 Component .......... 5735FAL00      Duplicate of ........
 Reported Release ......... 3A0      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 3A0   : UQ69952 available 02/09/25 (0401 )
 Release 410   : UQ69953 available 02/09/25 (0301 )
 Release 420   : UQ69954 available 02/09/25 (1000 )
 Release 430   : UQ70422 available 02/10/10 (0302 )
 
 Parent APAR:
 Child APAR list:
 
 ERROR DESCRIPTION:
 TCP/IP for VM does not report all point-to-point IP addresses to
 an OSD device when it is being used in a Supernetwork
 environment.  The system on which this problem has been
 identified was configured with a class C Supernet, as follows:
 
   193.x.14   Subnet_Mask  0.0.1.0  Subnet_value  0
 
 TCP/IP reports all IP addresses in the 193.x.14 range, butdoes
 not report IP addresses in the 193.x.15 range.
 
 LOCAL FIX:
 
 PROBLEM SUMMARY:
 ****************************************************************
 * USERS AFFECTED: All users of OSD devices                     *
 ****************************************************************
 * PROBLEM DESCRIPTION: When Proxy ARP support is enabled,      *
 *                      TCP/IP may not provide all              *
 *                      point-to-point IP addresses to the OSD  *
 *                      adapter. As a result, some traffic      *
 *                      destined for hosts with point-to-point  *
 *                      connections through VM TCP/IP may not   *
 *                      be delivered.                           *
 ****************************************************************
 * RECOMMENDATION: APPLY PTF                                    *
 ****************************************************************
 If an OSD connection is defined as part of a supernetwork, only
 hosts whose point-to-point connections use the same subnetwork
 as the OSD connection will have their home addresses added to
 the OSD IP address table. As a result, traffic for hosts in
 other parts of the supernetwork will not be directed to VM
 TCP/IP for forwarding.
 
 PROBLEM CONCLUSION:
 Code has been changed to support supernetworks for OSD Proxy
 ARP.
 
 TEMPORARY FIX:
 
 COMMENTS:
 
 MODULES/MACROS:   MSTCP    TCPIP    TCTOOSD
 
 SRLS:      NONE
 
 RTN CODES:
 
 CIRCUMVENTION:
 
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