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ServerCore/Network/NetworkInterface.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.NetworkInformation;
+using System.Net.Sockets;
+using System.Text;
+using System.Threading.Tasks;
+
+
+
+
+namespace ServerCore;
+
+//=============================================================================================
+// Network Interface 관련 정보를 조건에 해당하는 정보만 로딩하여 보관해 주는 클래스 이다.
+//
+// author : kangms
+// 
+//=============================================================================================
+
+public class NetInterface
+{
+    public string m_desc = "";
+    public string m_ip = "";
+    public string m_ipv6 = "";
+}
+
+public class NetInterfaceManager
+{
+    // ni num, address 
+    private List<NetInterface> m_nics = new List<NetInterface>();
+    private string m_ip_addresses = string.Empty;
+
+    public NetInterfaceManager()
+    {
+        init();
+    }
+
+    public void init()
+    {
+        m_nics.Clear();
+
+        // Ethernet의 ipv6, ipv4 주소만 수집한다. 
+        var nics = NetworkInterface.GetAllNetworkInterfaces();
+        foreach (var ni in nics)
+        {
+            if (ni.NetworkInterfaceType == NetworkInterfaceType.Ethernet ||
+                ni.NetworkInterfaceType == NetworkInterfaceType.Loopback)
+            {
+                bool has_info = false;
+                NetInterface nic = new NetInterface();
+                nic.m_desc = ni.Description;
+
+                var unicast_addresses = ni.GetIPProperties().UnicastAddresses;
+                foreach (var ip_info in unicast_addresses)
+                {
+                    if (ip_info.Address.AddressFamily == AddressFamily.InterNetwork)
+                    {
+                        nic.m_ip = ip_info.Address.ToString();
+                        has_info = true;
+                        m_ip_addresses += nic.m_ip;
+                    }
+                    else if (ip_info.Address.AddressFamily == AddressFamily.InterNetworkV6)
+                    {
+                        // 추가하자.
+                        nic.m_ipv6 = ip_info.Address.ToString();
+                        has_info = true;
+                    }
+                }
+
+                if (has_info)
+                {
+                    add(nic);
+                }
+            }
+        }
+
+    }
+
+    public void add(NetInterface nic)
+    {
+        m_nics.Add(nic);
+    }
+
+    public NetInterface find(string address)
+    {
+        foreach (var nic in m_nics)
+        {
+            if (   nic.m_ip == address
+                || nic.m_ipv6 == address )
+            {
+                return nic;
+            }
+        }
+        return new NetInterface();
+    }
+
+    public string getIPAddresses() => m_ip_addresses;
+
+    public List<NetInterface> getNetInterfaces() => m_nics;
+}