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IPv6 addresses are not set on OSA Ethernet interface

This document (3164782) is provided subject to the disclaimer at the end of this document.

Environment

Novell SUSE Linux Enterprise Server 9 for IBM S/390 Service Pack 3
Novell SUSE Linux Enterprise Server 9 for IBM S/390 and IBM zSeries Service Pack 3

Situation

Setting IPv6 addresses on OSA interfaces does not register the address with the OSA Ethernet interface card, even though the address is shown in the output of ip addr orifconfig.

Resolution

Modify/etc/sysconfig/hardware/hwcfg-qeth-bus-ccw-CCW, with CCW being the CCW address of the interface which needs having the IPv6 address assigned (for example0.0.0700), as follows:

  • Remove the line
    MODULE='qeth_mod'
  • Add the lines
    MODULE_0='ipv6'
    MODULE_1='qeth_mod'

Afterwards reboot the Linux system to activate the change.



Additional Information

The qeth_mod kernel module, which is the device driver for the OSA Ethernet interfaces, needs the ipv6 kernel module to be loaded already, otherwise it won't register IPv6 addresses with the interface card.

To set up a qeth device manually, the ipv6 driver needs to be loaded before loading qeth_mod. Should qeth driver have been loaded due to some other ccw group configuration file already, the hwcfg file for that ccw group should be modified as outlined above and the Linux system rebooted.

The next service pack of SLES9 may take this into account and change the order of start scripts to have this being guaranteed.

Disclaimer

This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:3164782
  • Creation Date:20-FEB-07
  • Modified Date:27-APR-12
    • SUSESUSE Linux Enterprise Server

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