查找接口和IP地址（C＃中的arp）
我有一个简单的问题，但由于缺乏C＃经验，我无法实现它。
当我打开cmd并输入arp -a命令时，它会显示所有接口和IP地址都是路由。
所以，我的目标是在C＃中实现上述过程并获取ip，mac等…有人可以帮我解决这个问题吗？ 我将不胜感激。 谢谢
Chris Pietschmann写了一篇关于你正在寻找什么的博客文章。
它模仿“arp -a”命令。
IPInfo类：
using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Net; /// /// This class allows you to retrieve the IP Address and Host Name for a specific machine on the local network when you only know it's MAC Address. /// public class IPInfo { public IPInfo(string macAddress, string ipAddress) { this.MacAddress = macAddress; this.IPAddress = ipAddress; } public string MacAddress { get; private set; } public string IPAddress { get; private set; } private string _HostName = string.Empty; public string HostName { get { if (string.IsNullOrEmpty(this._HostName)) { try { // Retrieve the "Host Name" for this IP Address. This is the "Name" of the machine. this._HostName = Dns.GetHostEntry(this.IPAddress).HostName; } catch { this._HostName = string.Empty; } } return this._HostName; } } #region "Static Methods" /// /// Retrieves the IPInfo for the machine on the local network with the specified MAC Address. /// /// The MAC Address of the IPInfo to retrieve. /// /// Retrieves the IPInfo for All machines on the local network. /// /// GetIPInfo() { try { var list = new List (); foreach (var arp in GetARPResult().Split(new char[] { '\n', '\r' })) { // Parse out all the MAC / IP Address combinations if (!string.IsNullOrEmpty(arp)) { var pieces = (from piece in arp.Split(new char[] { ' ', '\t' }) where !string.IsNullOrEmpty(piece) select piece).ToArray(); if (pieces.Length == 3) { list.Add(new IPInfo(pieces[1], pieces[0])); } } } // Return list of IPInfo objects containing MAC / IP Address combinations return list; } catch(Exception ex) { throw new Exception("IPInfo: Error Parsing 'arp -a' results", ex); } } /// /// This runs the "arp" utility in Windows to retrieve all the MAC / IP Address entries. /// ///
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外观极好！ 我正在使用它来检测网络上的新设备（并查看是否允许使用mac）。 我添加了一些东西（见下文）。 非常感谢Chris Pietschmann !!!
using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Net; namespace DescubrimientoDeRed { //This Class Holds the information for each IP/MAC public class IPInfo { private string _macAddress; private string _ipAddress; public string IpAddress { get { return _ipAddress; } set { _ipAddress = value; } } public string MacAddress { get { return _macAddress; } set { _macAddress = value; } } public IPInfo(string pmacAddress, string pipAddress) { this.MacAddress = pmacAddress; this.IpAddress = pipAddress; } } //This Class holds the IP of each one of the computer interfaces and a list of the //IPs/MAC found over that interface public class AdaptadorDeRed { private string _Interfaz; private List _IPsInterfaz; public List IPsInterfaz { get { return _IPsInterfaz; } set { _IPsInterfaz = value; } } public string Interfaz { get { return _Interfaz; } set { _Interfaz = value; } } public AdaptadorDeRed(string pInterfaz) { Interfaz = pInterfaz; _IPsInterfaz = new List (); } } //The following class has the important methods public class NetInfo { //ARPtheNet //This is the procedure that runs the arp command and retruns a text output private static string ARPtheNet() { //this is the process that will run the arp Process p = null; //this string will capture the output string output = string.Empty; try { //to the Process we will give the name of the file (wich is the command we use on the cmd and a string with the particular parameters p = Process.Start(new ProcessStartInfo("arp", "-a") { CreateNoWindow = true, UseShellExecute = false, RedirectStandardOutput = true }); //we store the output into the string output = p.StandardOutput.ReadToEnd(); //then we close te process p.Close(); } catch (Exception ex) { //If something goes wrong we throw a message with the name of the failing component, and the exception itself throw new Exception("NetInfo: Error al realizar un ARP a la red", ex); } finally { //whether everithing goes right or wrong, we nedd to close the process.. if (p != null) { p.Close(); } } return output; } //This is the procedure that will read the text from the procedure ARPtheNet and create the objects to have a nice result public List GetARPTheNet() { try { //This is the list that holds the interfaces (where each one of those, holds the ips) List list = new List (); //Need to declare this outside the "ifs" otherwise these objects will not be accesible from all the places i need. AdaptadorDeRed adr = null; IPInfo ipi = null; //Line by Line we move throw the text of the ARPtheNet result foreach (var arp in ARPtheNet().Split(new char[] { '\n', '\r' })) { //if the strings has texto on it... if (!string.IsNullOrEmpty(arp)) { //If the text has a ":", means that this line has the IP of the particular Interface like: //Interface: 192.168.0.1 --- 0x17 that means either is the first interface we have found, //or we already have an interface with ips and we have found a new one. if (arp.IndexOf(":") > 1) { //So if the interfaces is not null and have IPs, we add it to the list and set it null in order to create a new one for the one we just found. if (adr != null && adr.IPsInterfaz.Count > 0) { list.Add(adr); adr = null; } //either way, we create a new adapter adr = new AdaptadorDeRed(arp.Substring(10, arp.IndexOf("---") - 11)); } else { //Need to split the line in as many spaces or tabs we found. var pieces = (from piece in arp.Split(new char[] { ' ', '\t' }) where !string.IsNullOrEmpty(piece) select piece).ToArray(); //the onew that has 3 pieces is because the are like "192.168.0.1", "ff-ff-ff-ff-ff", "Dinamyc". if (pieces.Length == 3) { //we add it to the list of the particular interface adr.IPsInterfaz.Add(new IPInfo(pieces[1], pieces[0])); } } } } //When we get to the end of the text, we are not going to find another ":", so if the adapter is not null and has ips on it we need to add it to the list. if (adr != null && adr.IPsInterfaz.Count > 0) list.Add(adr); //then we return the list. return list; } catch (Exception ex) { throw new Exception("GetARPTheNet: Error al recuperar datos", ex); } } } }