13 自動加載br_netfilter模塊，開啟ip轉發

在/etc/sysctl.conf中添加：

net.bridge.bridge-nf-call-ip6tables = 1 net.bridge.bridge-nf-call-iptables = 1 
net.ipv4.ip_forward = 1

執行sysctl -p 時出現：

[root@localhost ~]# 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

解決方法：

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

重啟后模塊失效，下面是開機自動加載模塊的腳本

在/etc/新建rc.sysinit 文件

cat /etc/rc.sysinit

#!/bin/bash
for file in /etc/sysconfig/modules/*.modules ; do [ -x $file ] && $file done

在/etc/sysconfig/modules/目錄下新建文件如下

cat /etc/sysconfig/modules/br_netfilter.modules modprobe br_netfilter

增加權限

chmod 755 br_netfilter.modules

重啟后 模塊自動加載

[root@localhost ~]# lsmod |grep br_netfilter br_netfilter 22209 0 bridge 136173 1 br_netfilter