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alias net-pf-10 off
alias ipv6 off
options ipv6 disable_ipv6=1
blacklist ipv6
<a href="https://www.cesareriva.com/disable-ipv6-on-raspberry-pi3/">Disable IPv6 on Raspberry Pi3+</a>

https://www.cesareriva.com/disable-ipv6-on-raspberry-pi3/embed/#?secret=RVErZNYd3W