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From: deloptes <emanoil.kotsev@deloptes.org>
Newsgroups: linux.debian.user
Subject: Re: trying to get bookworm net going on an rpi4
Date: Mon, 24 Jan 2022 00:30:01 +0100
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Andy Smith wrote:

> However, if for your own eccentric reasons you insist:
> 
> # echo 'net.ipv6.conf.all.disable_ipv6=1' > /etc/sysctl.d/disableipv6.conf
> 
> will disable it from the next boot.
> 
> You can use:
> 
> # sysctl --system
> 
> to re-apply all sysctl configs immediately, so disabling IPv6
> without needing to reboot.

Don't know but I have following there (in /etc/sysctl.conf)

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1

and it does not disable ipv6

# lsmod | grep ipv
ipv6                  458752  80 bridge,udp_diag

however when I blacklist module ipv6 - it is gone ;-)

kernel used 4.19.161


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