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 devindevice_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);