在/etc/sysctl.conf 和/etc/sysctl.d/11-br-netfilter.conf 修改

net.bridge.bridge-nf-call-arptables=0
net.bridge.bridge-nf-call-ip6tables=0
net.bridge.bridge-nf-call-iptables=0

然后root@OpenWrt:~# sysctl -p看下是否修改成功
net.bridge.bridge-nf-call-arptables = 0
net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0

最后/etc/init.d/sysctl restart 搞定