是否可以在不使用win32 API库的情况下获取在C＃中连接的IP地址列表。

我正在尝试获取在LAN中连接的IP地址列表，是否可以不使用win32 API库。（Netapi32.dll）。 任何想法得到一个没有使用非托管的win32动态library.target到Windows 7操作系统

Answer 1

您可以使用System.Net.NetworkInformation.Ping来ping您子网中的每个IP，如果您得到响应，则有一台使用该IP的计算机。 如果您没有得到ip可用的响应，或者机器忽略了ping。

更新以添加代码以并行执行此操作。

public string IPList() { string myipsplit = string.Empty; string localhostname = Dns.GetHostName(); IPAddress[] paddresses = Dns.GetHostAddresses(localhostname); string myip = paddresses.Where( ip => ip.AddressFamily == AddressFamily.InterNetwork).FirstOrDefault().ToString(); string[] myiparray = myip.Split(new[] { '.' }); for (int j = 1; j < myiparray.Length; j++) myipsplit += myiparray[j - 1] + "."; Trace.WriteLine(DateTime.Now); var results = new string[0x100]; System.Threading.Tasks.Parallel.For(1, 0x100, id => { var pingSender = new Ping(); string ls = myipsplit + id; PingReply reply = pingSender.Send(ls, 100); if (reply != null) if (reply.Status == IPStatus.Success) results[id] = reply.Address.ToString(); }); Trace.WriteLine(DateTime.Now); var sb = new StringBuilder(); results.All(x => { sb.AppendFormat("{0} ", x); return true; }); return sb.ToString(); } 

更新为.Net 2.0

 private delegate void MyPing(int id); public string IPList2() { string myipsplit = string.Empty; string localhostname = Dns.GetHostName(); IPAddress[] paddresses = Dns.GetHostAddresses(localhostname); string myip = paddresses.Where(ip => ip.AddressFamily == AddressFamily.InterNetwork).FirstOrDefault().ToString(); string[] myiparray = myip.Split(new[] { '.' }); for (int j = 1; j < myiparray.Length; j++) myipsplit += myiparray[j - 1] + "."; Trace.WriteLine(DateTime.Now); var results = new string[0x100]; MyPing ping = id => { string ls = myipsplit + id; var pingSender = new Ping(); PingReply reply = pingSender.Send(ls, 100); if (reply != null) if (reply.Status == IPStatus.Success) results[id] = reply.Address.ToString(); }; var asyncResults = new IAsyncResult[0x100]; for (int i = 1; i < 0x100; i++) { asyncResults[i] = ping.BeginInvoke(i, null, null); } for (int i = 1; i < 0x100; i++) { ping.EndInvoke(asyncResults[i]); } Trace.WriteLine(DateTime.Now); var sb = new StringBuilder(); for (int i = 1; i < 0x100; i++) { if (results[i]!=null) sb.AppendFormat("{0} ", results[i]); } return sb.ToString(); } 

Answer 2

您可以使用NetworkInterface对象获取所有计算机网络接口。

 var networkCards = System.Net.NetworkInterface.GetAllNetworkInterfaces(); foreach(var card in networkCards) Console.WriteLine(card.GetPhysicalAddress()); 

Answer 3

 public string IPList() { var pingSender = new Ping(); string port = string.Empty; string myipsplit = string.Empty; string localhostname = Dns.GetHostName(); IPAddress[] paddresses = Dns.GetHostAddresses(localhostname); string myip = paddresses[0].ToString(); string[] myiparray = myip.Split(new[] {'.'}); for (int j = 1; j < myiparray.Length; j++) myipsplit += myiparray[j - 1] + "."; Trace.WriteLine(DateTime.Now); for (int i = 0; i < 0x100; i++) { string ls = myipsplit + i; PingReply reply = pingSender.Send(ls, 0); if (reply != null) if (reply.Status == IPStatus.Success) port += reply.Address + "+"; } Trace.WriteLine(DateTime.Now); return port; }