[CentOS] Kernel is not compiled with IPv6 support?

[Robert Moskowitz]

Sean Carolan wrote:
>> CRITICAL : [ipv6_test] Kernel is not compiled with IPv6 support
>>                                                          [  OK  ]
>> FATAL: Module off not found.
>> CRITICAL : [ipv6_test] Kernel is not compiled with IPv6 support
>>     
>
> Try looking inside /etc/modprobe.conf for these lines:
> alias net-pf-10 off
> alias ipv6 off
>
> If those are in there then ipv6 will be disabled at boot.
Yep. They are there. So what is the 'proper' method to get them out 
(other than using VI and deleteing the lines?)?