修改 linux 内核文件 sysctl -P 报错 error: "net.bridge.bridge-nf-call-ip6tables" is an unknown key error: "net.bridge.bridge-nf-call-iptables" is an unknown key error: "net.bridge.bridge-nf-call-arptables" is an unknown key 解决方法如下: modprobe bridge lsmod|grep bridge