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IV66285: NETSTAT -RN FALSELY SHOWS ROUTING ENTRY FOR FIRSTALIAS ADDRESS APPLIES TO AIX 7100-03

A fix is available

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APAR status

  • Closed as program error.

Error description

  • When an alias IP is added to an interface with firstalias
    keyword, routing entry is updated with the newly added
    alias IP address if it is in the same subnet as the
    existing
    IP address of the interface. When the 2nd alias IP of the
    same subnet is added, netstat -rn does not give the
    updated
    route entry with the new IP address as its gateway.
    
    But, outgoing packets use the correct source IP address.
    

Local fix

Problem summary

  • netstat -rn is showing wrong route entry after
    adding the 2nd alias IP with firstalias keyword.
    

Problem conclusion

  • Extra condition is added to check if newly added gateway is
    different from the existing one. If it is different, then make
    the newly added IP as the gateway.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV69772
    6100-09 - use AIX APAR IV68696
    7100-02 - use AIX APAR IV70307
    7100-03 - use AIX APAR IV66285
    

APAR Information

  • APAR number

    IV66285

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-10-27

  • Closed date

    2015-02-12

  • Last modified date

    2015-09-30

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U865834

       UP15/05/19 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV66285

Modified date: 30 September 2015