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IV27520: CAN'T BIND IPV6 SOCKET TO PORT WHEN BOUND IPV4 SOCKET EXISTS APPLIES TO AIX 7100-02

A fix is available

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • If there is an IPv4 socket bound to a particular port the
    attempt to bind an IPv6 socket to the same port fails
    with
    "address in use". Binding an IPv4 socket is possible even
    when an IPv6 socket exists.
    

Local fix

  • Bind the IPv6 socket first then the IPv4 socket.
    

Problem summary

  • If there is an IPV4 socket bound to a port, then the attempt of
    ipv6 only socket bind to same port will fail with
    "Address in use".
    

Problem conclusion

  • Code modified to allow two sockets with different
    IP versions(V4 & V6 only) to bind to same port.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV27520

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2012-09-04

  • Closed date

    2012-09-04

  • Last modified date

    2013-03-26

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

    IV23320

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

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U846336

       UP12/10/26 I 1000

PTF to Fileset Mapping

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Document Information

Modified date:
26 March 2013