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IV13543: MARTIAN PACKET WITH LOOPBACK SOURCE ADDRESS NOT DROPPED APPLIES TO AIX 6100-06

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Martian packets with the loopback (127.0.0.1) address are
    received on interfaces other than lo0 and processed
    instead
    of discarded.
    

Local fix

  • Disable checksum offload.
    

Problem summary

  • martian packet check is bypassed when checksum offload is
    enabled. This might cause denial of service or evesdrop.
    Though driver should drop this kind of packets. But with
    particula HEA adapter with promiscous mode enabled will
    just forward such packets to ip layer without any check
    

Problem conclusion

  • Move martian packet check before the checksum offload check.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV13543

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2012-01-19

  • Closed date

    2012-01-19

  • Last modified date

    2013-02-27

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

    IV07315

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

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U849141

       UP12/03/14 I 1000

PTF to Fileset Mapping

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Document Information

Modified date:
27 February 2013