Question

我有一个C＃函数，它返回本地IP地址。

private string GetLocalIPByHostName()
    {
        string host = Dns.GetHostName();
        string LocalIP = string.Empty;
        IPHostEntry ip = Dns.GetHostEntry(host);
        foreach (IPAddress _IPAddress in ip.AddressList)
        {
            if (_IPAddress.AddressFamily.ToString() == "InterNetwork")
            {
                LocalIP = _IPAddress.ToString();

            }
        }
        return LocalIP;
    }

通过使用此本地IP地址，我试图获取MAC地址。

protected string GetMACAddressByIP(string ip)
    {
        try
        {
            ManagementObjectSearcher query= new ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection queryCollection = query.Get();
            bool Found = false;
            foreach(ManagementObject _ManagementObject in queryCollection)
            {
                if (_ManagementObject["IPAddress"] != null)
                {
                    string _IPAddress;
                    _IPAddress = string.Join(".", (string[])_ManagementObject["IPAddress"]);

                    if(!_IPAddress.Equals(""))
                    {
                        if(_IPAddress.Equals(ip.Trim()))
                        {
                                Found = true;
                        }
                    }

                    if(Found == true)
                    {
                        if (_ManagementObject["macaddress"] != null)
                        {
                            if (!_ManagementObject["macaddress"].Equals(""))
                            {
                                return (string)_ManagementObject["macaddress"];
                            }
                        }
                    }
                    else
                    {
                        Found = false;
                    }
                }
            }

            MessageBox.Show("No Mac Address Found");
            return "";
        }
        catch(Exception ex)
        {
            MessageBox.Show(ex.Message);
            return "";
        }
    }

其中两个功能正常工作但我想做的是在同一个局域网上获取其他PC的IP地址然后，如果我得到那些IP地址，那将是我的

的输入值

GetMACAddressByIP(string ip)

功能。

但我的问题是我不知道如何获得其他PC IP地址。

private List<string> GetRemoteIPs(string LocalIPAddress)
    {
        List<string> RemoteIPs = new List<string>();

             /*** Here code will be as suggestion of yours.  ****/    

        return RemoteIPs;
    }

然后，下一个问题是这是否可以获得已经关闭的PC的MAC地址？

我们非常感谢每一个解决方案。

Answer 1

    // Get all active IP connections on the network
    private void btnSearch_Click(object sender, EventArgs e)
    {
        System.Net.NetworkInformation.IPGlobalProperties network = System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties();
        System.Net.NetworkInformation.TcpConnectionInformation[] connections = network.GetActiveTcpConnections();

        foreach (System.Net.NetworkInformation.TcpConnectionInformation connection in connections)
        {

        }
    }

Answer 2

下面的方法适用于Windows（在WinXP和上测试）和使用Mono的Linux（在ubuntu，Suse，Redhat上测试）。

/// <summary>Get Network Interface Addresses information of current machine.</summary> /// <returns>Returns Array of Tuple of Mac Address, IP Address, and Status.</returns> public virtual Tuple<string, IPAddress, OperationalStatus>[] GetNetworkInterfaceAddresses() { List<Tuple<string, IPAddress, OperationalStatus>> list = new List<Tuple<string, IPAddress, OperationalStatus>>(); NetworkInterfaceType[] acceptedNetInterfaceTypes = new NetworkInterfaceType[] { NetworkInterfaceType.Ethernet, NetworkInterfaceType.Ethernet3Megabit, NetworkInterfaceType.FastEthernetFx, NetworkInterfaceType.FastEthernetT, NetworkInterfaceType.GigabitEthernet, NetworkInterfaceType.Wireless80211 }; List<NetworkInterface> adapters = NetworkInterface.GetAllNetworkInterfaces() .Where(ni => acceptedNetInterfaceTypes.Contains(ni.NetworkInterfaceType)).ToList(); #region Get the Mac Address Func<NetworkInterface, string> getPhysicalAddress = delegate(NetworkInterface am_adapter) { PhysicalAddress am_physicalAddress = am_adapter.GetPhysicalAddress(); return String.Join(":", am_physicalAddress.GetAddressBytes() .Select(delegate(byte am_v) { string am_return = am_v.ToString("X"); if (am_return.Length == 1) { am_return = "0" + am_return; } return am_return; }).ToArray()); }; #endregion #region Get the IP Address Func<NetworkInterface, IPAddress> getIPAddress = delegate(NetworkInterface am_adapter) { IPInterfaceProperties am_ipInterfaceProperties = am_adapter.GetIPProperties(); UnicastIPAddressInformation am_unicastAddressIP = am_ipInterfaceProperties.UnicastAddresses .FirstOrDefault(ua => ua.Address != null && ua.Address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork); if (am_unicastAddressIP == null) { return null; } return am_unicastAddressIP.Address; }; #endregion // It's possible to have multiple UP Network Interface adapters. So, take the first order from detected Network Interface adapters. NetworkInterface firstOrderActiveAdapter = adapters.FirstOrDefault(ni => ni.OperationalStatus == OperationalStatus.Up); string macAddress; IPAddress ipAddress; if (firstOrderActiveAdapter != null) { macAddress = getPhysicalAddress(firstOrderActiveAdapter); ipAddress = getIPAddress(firstOrderActiveAdapter); if (ipAddress == null) { throw new Exception("Unable to get the IP Address v4 from first order of Network Interface adapter of current machine."); } list.Add(new Tuple<string, IPAddress, OperationalStatus>(macAddress, ipAddress, firstOrderActiveAdapter.OperationalStatus)); adapters.Remove(firstOrderActiveAdapter); } foreach (NetworkInterface adapter in adapters) { macAddress = getPhysicalAddress(adapter); ipAddress = getIPAddress(adapter); list.Add(new Tuple<string, IPAddress, OperationalStatus>(macAddress, ipAddress, adapter.OperationalStatus)); } if (firstOrderActiveAdapter == null) { throw new Exception("Unable to get the Active Network Interface of the current machine."); } return list.ToArray(); }

Answer 3

不，您通常无法获得已关闭的PC的MAC地址。这是在数据包中发送的硬件标识符。您唯一的希望 - 它是一个黑客，是检查本地系统ARP表，例如转到命令行并键入arp -a

这对你想做的事情是不可行的。事实上，即使你知道IP，我相信你所拥有的技术是不确定的，绝对不会在所有远程情况下都有效（如果有的话）

Answer 4

在同一LAN中查找计算机IP地址的一种方法是开始ping所有可能的IP。你将同时获得IP和MAC地址......来自回复的那些，即。

Answer 5

查找机器的ip和mac地址

cmd> ipconfig /全部

// Mac地址[以太网适配器以太网：>物理地址]

var macAddress = NetworkInterface.GetAllNetworkInterfaces();
var getTarget = macAddress[0].GetPhysicalAddress();

// IP地址[以太网适配器以太网：> IPv4地址]

string myHostName = Dns.GetHostName();
IPHostEntry iphostEntries = Dns.GetHostEntry(myHostName);
IPAddress[] arrIP = iphostEntries.AddressList;
var getIPAddress = arrIP[arrIP.Length - 1].ToString();

MAC地址和IP地址

5 个答案: