如果脚本内有命令不能执行，需要自行安装，请根据实际端口名进行修改：

 

#!/bin/sh
#
# Do some initialzation for Rockchip Linux SDK....
#

case "$1" in
start)
        ifconfig eth0 up
        /run/swconfig dev switch0 set reset
        /run/swconfig dev switch0 set apply
        /run/swconfig dev switch0 set enable_vlan 1
        /run/swconfig dev switch0 vlan 1 set ports "5t 0 1 2"
        /run/swconfig dev switch0 vlan 2 set ports "5t 3"
        /run/swconfig dev switch0 set apply
        vconfig add eth0 1
        vconfig add eth0 2
        ifconfig eth0.1 down
        ifconfig eth0.2 down
        ip link set eth0.1 name lan
        ip link set eth0.2 name wan
        ifconfig lan up
        ifconfig wan up

        brctl addbr br0
        brctl addif br0 lan
        ifconfig br0 192.168.1.100 netmask 255.255.255.0
        update-alternatives --set iptables /usr/sbin/iptables-legacy
        ethList=`ls /sys/class/net|awk -F ' ' '{print $1}' | grep 'enx\|eth2'`
        echo $ethList
        iptables -t nat -A POSTROUTING -o wan -jMASQUERADE
        iptables -A FORWARD -i lan -j ACCEPT
        echo '1'>/proc/sys/net/ipv4/ip_forward
        dnsmasq
        ;;
stop)
        ;;
*)
        echo "Usage: $0 {start|stop}"
        exit 1
        ;;
esac

exit 0

 

DHCP部分用到了dnsmasq软件，配置文件/etc/dnsmasq.conf内容如下：

 

user=root
interface=br0
dhcp-option=br0,1,255.255.255.0    #1表示为 子网掩码配置
dhcp-option=br0,3,192.168.1.100    #3表示为网关地址配置
dhcp-option=br0,6,192.168.1.100    #6表示为DNS地址配置
dhcp-range=br0,192.168.1.2,192.168.1.99,12h      #配置范围和 DHCP租期长度