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Old 04-17-2013, 06:11 AM   #1
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IPv6 only configuration


I am running an application that can work in both environments, IPv4 and IPv6. What I want to test is that if it works in an IPv6 environment only, so I need to deactivate the IPv4. I think I made it works with the eth0 interface but I cant manage to do the same with the loopback interface. Each time I restart the network adapters the lo IP address cames back even after removing the IPv4 value from the ifcfg-lo and adding the IPv6 one. What I finally try after going around is to remove the IPv4 address manually after restarting the network adapters. It worked but when I run my application, it can still create IPv4 sockets.

I run out of ideas so any help will be helpfull.

Kind regards,

Old 04-18-2013, 05:25 PM   #2
Ser Olmy
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You will probably have to recompile the kernel to remove IPv4 support completely.

If you decide to do that, make sure you install the new kernel as a separate boot option in addition to the kernel you're currently using.
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Old 04-19-2013, 04:25 AM   #3
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Thanks. That was what I though after looking around for two days.
Old 04-25-2013, 06:04 AM   #4
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Why don't you just block lo using iptables, and open up in ip6tables.



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