valid_lft forever preferred_lft forever
</pre>
*$ sudo vi /etc/sysctl.conf
<pre>
# Uncomment the next line to enable packet forwarding for IPv4
net.ipv4.ip_forward=1
</pre>
*[https://www.softel.co.jp/labs/tools/network/ CIDER計算]
*dockerブリッジの確認
<pre>
}
</pre>
*$ sudo vi /etc/sysctl.conf リスタート
<pre>
# Uncomment the next line to enable packet forwarding for IPv4net.ipv4.ip_forward=1$ sudo systemctl restart docker
</pre>
*[https://www.softel.co.jp/labs/tools/network/ CIDER計算]
==Tips==