15. DBサーバ設定例 (CentOS7) $ sudo su # yum install -y quagga iptables-services net-tools traceroute tcpdump # echo "net.ipv6.conf.all.forwarding = 1" > /etc/sysctl.conf # cp -p /etc/quagga/zebra.conf /etc/quagga/ospf6d.conf # setsebool -P zebra_write_config 1 # systemctl mask firewalld ; systemctl disable ip6tables # systemctl enable ospf6d ; systemctl start ospf6d # modprobe l2tp_eth # ip l2tp add tu