/// <summary>
/// Gets IP addresses of the local computer
/// </summary>
public string GetLocalIP()
{
string _IP = null;
// Resolves a host name or IP address to an IPHostEntry instance.
// IPHostEntry - Provides a container class for Internet host address information.
System.Net.IPHostEntry _IPHostEntry = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName());
// IPAddress class contains the address of a computer on an IP network.
foreach (System.Net.IPAddress _IPAddress in _IPHostEntry.AddressList)
{
// InterNetwork indicates that an IP version 4 address is expected
// when a Socket connects to an endpoint
if (_IPAddress.AddressFamily.ToString() == "InterNetwork")
{
_IP = _IPAddress.ToString();
}
}
return _IP;
}
Ví dụ sử dụng:
Console.WriteLine("Local computer IP address : " + GetLocalIP());
Đoạn code này sử dụng để lấy ip của máy có nhiều địa chỉ ip
/// <summary>
/// Gets IP addresses object list from the local computer
/// </summary>
public System.Net.IPAddress[] GetLocalIPList()
{
// Resolves a host name or IP address to an IPHostEntry instance.
// IPHostEntry - Provides a container class for Internet host address information.
System.Net.IPHostEntry _IPHostEntry = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName());
return _IPHostEntry.AddressList;
}
Ví dụ sử dụng:
// display all IP addresses of local machine
foreach (System.Net.IPAddress _IPAddress in GetLocalIPList())
Console.WriteLine(_IPAddress.ToString());
// display all IP addresses of local machine with addressing scheme
foreach (System.Net.IPAddress _IPAddress in GetLocalIPList())
Console.WriteLine(_IPAddress.AddressFamily.ToString() + " = " + _IPAddress.ToString());