[CentOS] IPV6 auto configuration cannot be disabled from if script.

> I could have written a script to remove IPV6 link local address but 
> there should be a basic option for that.

You can set: echo "options ipv6 disable=1" > /etc/modprobe.d/noipv6.conf

But more and more apps then log problems or get confused if ipv6 is
completely disabled, so keeping the link local address should be
"the general case" for most installs.

Best regards,

Florian La Roche