[CentOS] Disabling IPv4

Robert Moskowitz rgm at htt-consult.com
Tue Aug 19 02:54:50 UTC 2008


Barry Brimer wrote:
>
>
> On Mon, 18 Aug 2008, Robert Moskowitz wrote:
>
>> Barry Brimer wrote:
>>> Quoting Robert Moskowitz <rgm at htt-consult.com>:
>>>
>>>
>>>> I want to seriously work with IPv6 and not have stray IPv4 functions
>>>> messing with me.
>>>>
>>>> So in /etc/sysconfig/network, I commented out NETWORKING=yes. I have
>>>> NETWORKING_IPV6=yes.
>>>>
>>>> In /etc/sysconfig/network-scripts I altered ifcfg-eth0, setting
>>>> BOOTPROTO=none. That was enough for eth0 to only have IPv6 working on
>>>> it (have IPV6INIT=yes and IPV6_AUTOCONF=yes).
>>>>
>>>> But lo had IPv4. So I commented out all of the IPV4 lines in ifcfg-lo.
>>>> Still have IPv4 on lo. How do I disable that?
>>>>
>>>
>>> Try adding "alias net-pf-2 off" to your /etc/modprobe.conf
>> I did that and rebooted.
>>
>> Then did a ifconfig and lo is still showing an inet address of 127.0.0.1
>>
>> and I can ping 127.0.0.1
>>
>> So that tends to imply that ipv4 is still running.
>
> I would agree with you.
>
> Have you tried setting ONBOOT=no in 
> /etc/sysconfig/network-scripts/ifcfg-lo ??
No, but I do want iPv6 loopback, so I need something working for ifcfg-lo

Will try some more tomorrow....




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