探索IP地址，默认门路，子网掩码 [英] Prob in Finding IPAddress, Default gate way,Subnet mask

问题描述

Hi frens





如何使用c＃windows窗体查找ipaddress，子网掩码和默认网关？



我尝试了一些代码来找到ipaddress，它返回127.0.0.1这是正确的，但是我手动将ip地址设置为198.168.1.2 ..我怎么能得到它？ ？请给出你的建议







提前致谢

Darshan

Hi frens


How can i find out the ipaddress , subnetmask and default gateway using c# windows form ?

I tried out some code to find ipaddress , its returning 127.0.0.1 which is correct , but i ve manually set the ip address to 198.168.1.2 ..How can i get that ?? Please give ur suggestions



Thanks in advance
Darshan

推荐答案

一台机器可以有零个或多个网络接口，IP地址等。你的问题的答案不是单一的答案，而是在每种情况下都有一个列表。



获取每个接口的IP地址和子网掩码：

A machine can have zero or more network interfaces, IP addresses etc. The answer to your question is not a single answer but involves a list in each case.

To get the IP addresses and subnet mask for each interface:

using System;
using System.Net.NetworkInformation;

public class blahblah
{
  public static void Main()
  {
    NetworkInterface[] Interfaces = NetworkInterface.GetAllNetworkInterfaces();
    foreach(NetworkInterface Interface in Interfaces)
    {
      if(Interface.NetworkInterfaceType == NetworkInterfaceType.Loopback) continue;
      Console.WriteLine(Interface.Description);
      UnicastIPAddressInformationCollection UnicastIPInfoCol = Interface.GetIPProperties().UnicastAddresses;
      foreach(UnicastIPAddressInformation UnicatIPInfo in UnicastIPInfoCol)
      {
        Console.WriteLine("\tIP Address is {0}", UnicatIPInfo.Address);
        Console.WriteLine("\tSubnet Mask is {0}", UnicatIPInfo.IPv4Mask);
      }
    }
  }
}

打印网关：

To print the gateway:

public void PrintDefaultGateway() 
{ 
   var defaultGateway = 
   from nics in NetworkInterface.GetAllNetworkInterfaces() 
   from props in nics.GetIPProperties().GatewayAddresses 
   where nics.OperationalStatus == OperationalStatus.Up 
   select props.Address.ToString(); 

   Console.WriteLine("\tGateway is {0}", defaultGateway.First());
}

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