centos7添加bridge-nf-call-ip6tables出现No such file or directory

在/etc/sysctl.conf中添加一下内容时：

net.bridge.bridge-nf-call-iptables = 1 
net.bridge.bridge-nf-call-ip6tables = 1

[root@controller ~]# cat /etc/sysctl.conf
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1

执行sysctl –p时出现如下报错：

[root@controller ~]# sysctl -p
sysctl: cannot stat /proc/sys/net/bridge/bridge-nf-call-ip6tables: No such file or directory
sysctl: cannot stat /proc/sys/net/bridge/bridge-nf-call-iptables: No such file or directory

解决方法：

[root@controller ~]# modprobe br_netfilter
[root@controller ~]# ls /proc/sys/net/bridge
bridge-nf-call-arptables  bridge-nf-filter-pppoe-tagged
bridge-nf-call-ip6tables  bridge-nf-filter-vlan-tagged
bridge-nf-call-iptables   bridge-nf-pass-vlan-input-dev 

[root@controller ~]# sysctl -p
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1