help: Disable assignment of IPv6 addresses on all interfaces
create:
sudo sh -c "echo options ipv6 disable_ipv6=1 > \
/etc/modprobe.d/vyatta_disable_ipv6"
echo "This change will take affect when the system is rebooted."
delete:
sudo sh -c "rm -f /etc/modprobe.d/vyatta_disable_ipv6"
echo "This change will take affect when the system is rebooted."