Found the fix for this.

On the CVM run the following commands

manage_ipv6 unconfigure

manage_ipv6 disable

Does not work, 

I have been struggling with this, have reloaded my cluster twice trying to get past this message.  Cannot find good information on how to first determine if IPv6 is enabled and second how to conclusively identify that it has been disabled.  Will keep digging, but any additional information would be appreciated.

Regards,

Eric

The error that shows up in the manage_ipv6.out shows …

failed to disable IPv6 on 192.168.0.111 error: Cannot disable IPv6 on interface eth0 as it has IP 2600:8804:417:8700:5054:ff:feb4:a89 configured on it

I added three lines to /etc/sysctl.conf for each cvm and fdid a rolling reboot of all cvm’s and I am still getting the dual stack error…