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OpenWrt Tips and Tricks

Disable ipv6

uci set 'network.lan.ipv6=0'
uci set 'network.wan.ipv6=0'
uci set 'dhcp.lan.dhcpv6=disabled'
/etc/init.d/odhcpd disable
uci commit

and then disable RA and DHCPv6 so no IPv6 IPs are handed out:

uci -q delete dhcp.lan.dhcpv6
uci -q delete dhcp.lan.ra
uci commit dhcp
/etc/init.d/odhcpd restart

You can now disable the LAN delegation:

uci set network.lan.delegate="0"
uci commit network
/etc/init.d/network restart

You might as well disable odhcpd:

/etc/init.d/odhcpd disable
/etc/init.d/odhcpd stop

And finally you can delete the IPv6 ULA Prefix:

uci -q delete network.globals.ula_prefix
uci commit network
/etc/init.d/network restart

Last update: December 2, 2021
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