Linux IPv6 loopback interface not supported (6356355)

On a Linux system, the Monitoring Framework will not work when IPv6 is enabled. As a result, the instrumentation of your monitored components on this system will not be loaded into the cacao container, and you will not see them in the Monitoring Console.

Solution There are two possible solutions:

• Configure the Monitoring Framework to not use the loopback interface:

  1. In the Monitoring Framework configuration directory (default /etc/opt/sun/mfwk/config), make a copy of the sample properties file:

     cp mfwk.properties.sample mfwk.properties

  2. Set the following parameter in the newly copied mfwk.properties file:

     mfwk.multicast.disableloopback=true

  3. Restart the node agent, the master agent, and the Monitoring Console with the procedure To Restart a Node Agent in Sun Java Enterprise System 5 Monitoring Guide.

• Or disable IPv6 on Red Hat 3.0 with the following steps:

  1. Find this line if it appears in the /etc/modprobe.conf file:

     alias net-pf-10 ipv6

  2. Change it or add the following line:

     alias net-pf-10 off

  3. Reboot the system. IPv6 should now be disabled.

  On Red Hat 4.0, follow the same procedure using the /etc/modules.conf file.