TCP/IP实验获取主机网卡信息

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using SharpPcap;
using PacketDotNet;
using SharpPcap.LibPcap;
namespace Text
{
    public partial class Form1 : Form
    {
        CaptureDeviceList device_list;
        public Form1()
        {
            InitializeComponent();
            device_list = GetDeviceList();
        }
 /// <summary>
 /// 获得当前的设备列表（网卡）
 /// </summary>
 /// <returns></returns>
        public CaptureDeviceList GetDeviceList()
        {
 // Print SharpPcap version 
            string ver = SharpPcap.Version.VersionString;
            this.richTextBox1.Text = string.Format("SharpPcap {0}, Device List\n", ver);
            try
            {
 // Retrieve the device list
                CaptureDeviceList device_list = CaptureDeviceList.Instance;
 // If no devices were found print an error
                if (device_list.Count < 1)
                {
                    this.richTextBox1.Text += "No devices were found on this machine\n";
                    return null;
                }
                this.richTextBox1.Text += "\nThe following devices are available on this machine:\n";
                this.richTextBox1.Text +="----------------------------------------------------\n";
 // Print out the available network devices
                foreach (ICaptureDevice dev in device_list)
                this.richTextBox1.Text += string.Format("\n名称：{0}\n网关：{1}\n描述：{2}\n", ((PcapDevice)dev).Interface.FriendlyName, ((PcapDevice)dev).Interface.GatewayAddress, ((PcapDevice)dev).Interface.Description);
                return device_list;
            }
            catch (System.Exception ex)
            {
                MessageBox.Show(ex.ToString());
                return null;
            }
        }
}
}

实验结果

SharpPcap 采用了分层结构，在最顶层的是几个管理所有设备的类：

CaptureDeviceList——包含系统中所有设备的列表

ICaptureDevice——所有继承 ICaptureDevice 接口的设备

通过执行下面一行代码，可以轻松获得所有本机的所有网卡设备：

CaptureDeviceListdevice_list = CaptureDeviceList.Instance;

在获得网卡设备以后，通过下面的 foreach 循环，就能将设备信息输出到RichTextBox 中：

          foreach (ICaptureDevice dev indevice_list)

              this.richTextBox1.Text+= string.Format("\n名称：{0}\n网关：{1}\n描述：{2}\n", ((PcapDevice)dev).Interface.FriendlyName,((PcapDevice)dev).Interface.GatewayAddress, ((PcapDevice)dev).Interface.Description);