rk 3399 双以太网卡支持，eth1静态ip

1、adb shell
2、ifconfig eth1 up //打开eth1 网卡
3、ifconfig eth1 192.168.20.8 //设置eth1静态ip
4、查看网卡信息，已经有eth1网卡信息了：

ifconfig
lo        Link encap:Local Loopback  
       inet addr:127.0.0.1  Mask:255.0.0.0 
       inet6 addr: ::1/128 Scope: Host
       UP LOOPBACK RUNNING  MTU:65536  Metric:1
       RX packets:420 errors:0 dropped:0 overruns:0 frame:0 
       TX packets:420 errors:0 dropped:0 overruns:0 carrier:0 
       collisions:0 txqueuelen:1 
       RX bytes:48008 TX bytes:48008 

eth1      Link encap:Ethernet  HWaddr 00:e0:4c:68:00:e5
       inet addr:192.168.20.8  Bcast:192.168.20.255  Mask:255.255.255.0 
       inet6 addr: fe80::2e0:4cff:fe68:e5/64 Scope: Link
       UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
       RX packets:8456 errors:0 dropped:0 overruns:0 frame:0 
       TX packets:364 errors:0 dropped:0 overruns:0 carrier:0 
       collisions:0 txqueuelen:1000 
       RX bytes:912312 TX bytes:19508 

eth0      Link encap:Ethernet  HWaddr a8:33:15:c1:9e:ca
       inet addr:172.16.5.84  Bcast:172.16.5.255  Mask:255.255.255.0 
       inet6 addr: fe80::aa33:15ff:fec1:9eca/64 Scope: Link
       UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
       RX packets:123156 errors:0 dropped:0 overruns:0 frame:0 
       TX packets:39230 errors:0 dropped:0 overruns:0 carrier:0 
       collisions:0 txqueuelen:1000 
       RX bytes:88504593 TX bytes:3665312 
       Interrupt:24

5、现在还无法访问，还需要把eth1的路由添加到eth0

ip route add 192.168.20.0/24 dev eth1 proto static scope link table eth0

现在eth0 和 eth1都可以使用了

代码执行

RootCmd.execRootCmd("ifconfig eth1 up");
RootCmd.execRootCmd("ifconfig eth1 192.168.20.8");
RootCmd.execRootCmd("ip route add 192.168.20.0/24 dev eth1 proto static scope link table eth0");

package com.aimei.meiktv.meiktvvod.utils;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import android.util.Log;

/**
 * Android运行linux命令
 */
public final class RootCmd {
public static String execRootCmd(String cmd) {
        String result = "";
        DataOutputStream dos = null;
        DataInputStream dis = null;

        try {
            Process p = Runtime.getRuntime().exec("su");// 经过Root处理的android系统即有su命令
            dos = new DataOutputStream(p.getOutputStream());
            dis = new DataInputStream(p.getInputStream());

            Log.i(TAG, cmd);
            dos.writeBytes(cmd + "\n");
            dos.flush();
            dos.writeBytes("exit\n");
            dos.flush();
            String line = null;
            while ((line = dis.readLine()) != null) {
                Log.d("result", line);
                result += line;
            }
            p.waitFor();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (dos != null) {
                try {
                    dos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (dis != null) {
                try {
                    dis.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return result;
    }
}