Re: Disabling IPv6 by default when creating a new namespace in Linux

[Dheeraj Kandula <dkandula@gmail.com>]

Hi Bjørn

         Thanks for your reply. Are you suggesting that if I boot up the machine with "net.ipv6.conf.all.disable_ipv6=1" and "net.ipv6.conf.default.disable_ipv6=1", IPv6 should be disabled in newly created namespaces too.

It doesn't work that way on my machine. Can you point me to the function that is used for creating a new namespace?

Thanks

Dheeraj

On Tue, Jun 7, 2022 at 12:56 PM Bjørn Mork <bjorn@mork.no> wrote:

Dheeraj Kandula <dkandula@gmail.com> writes:

> How do I disable IPv6 by default when a new namespace is created?

Looking at the code, I see that the default for all namespaces will be
taken from the ipv6 module parameter "disable_ipv6".  This parameter is
not writable and the ipv6 module is built-in, so you cannot change it
after boot.  But booting with "ipv6.disable_ipv6=1" on the command line
should work.


Bjørn