PH30131: SNMP GETNEXTREQUEST ON CERTAIN MIBS MAY CAUSE ERROR

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• SNMP GetNextRequest on particular MIBs, may cause an error.
  Among possible maifestations, a 'walk' may prematurely cease.
  
  The MIBs affected are:
    1.3.6.1.2.1.1.2 (sysObjectID)
    1.3.6.1.2.1.1.3 (sysUpTime)
    1.3.6.1.4.1.2.2.1.1 (DPItcpPort)
  
  The usual manifestation of this problem is a General Error being
  returned by the SNMP server when asking for the next MIB.  If
  the user is 'walking' the MIBs, the error will cause the walk to
  cease.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: z/VM SNMPD users that walk the MIBs          *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION: APPLY PTF                                    *
  ****************************************************************
  SNMP GetNextRequest on particular MIBs caused an SNMP "General
  Error" to be returned to the user. A misplaced parenthesis in
  the code caused  an incorrect memory location to be used when
  determining the size of a string. The wrong string length
  caused a miscompare and error when GetNextRequest was used on
  certain MIBs.
  
  The MIBs affected are:
    1.3.6.1.2.1.1.2 (sysObjectID)
    1.3.6.1.2.1.1.3 (sysUpTime)
    1.3.6.1.4.1.2.2.1.1 (DPItcpPort)
  

Problem conclusion

• The do_mib_request routine in MIB_PARS has been updated to
  correct the misplaced parenthesis. GetNextRequest will now
  return the correct MIB instead of an error.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UI72628 UI72629 UI72632

Modules/Macros

• MIB_PARS
  

Fix information

• Fixed component name

  TCP/IP FOR Z/VM

• Fixed component ID

  5735FAL00

Applicable component levels

• R640 PSY UI72628

     UP20/11/25 I 1000

• R710 PSY UI72629

     UP20/11/25 I 1000

• R720 PSY UI72632

     UP20/11/25 I 1000

Fix is available

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