Memo armbian ipv6 temporary adress (RFC4941)

sudo vi /etc/sysctl.conf

net.ipv6.conf.eth0.use_tempaddr=1
net.ipv6.conf.default.use_tempaddr=1

sudo sysctl -p

sudo sysctl -a|grep -e temp_valid_lft -e temp_prefered_lft -e use_tempaddr|grep eth0

cat /proc/sys/net/ipv6/conf/default/use_tempaddr