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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net.NetworkInformation;
using Microsoft.Win32;
namespace setMTU {
public partial class Form1 : Form {
public Form1() {
InitializeComponent();
ShowNetworkInterface(this);
this.button1.Select();
}
public static void ShowNetworkInterface(Form1 obj) {
IPGlobalProperties computerProperties = IPGlobalProperties.GetIPGlobalProperties();
NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
obj.textArea.AppendText("Interface information for " + computerProperties.HostName+"."+computerProperties.DomainName+"\n");
/*
if (nics == null || nics.Length < 1) {
obj.textArea.AppendText(" No network interfaces found.\n");
return;
}
*/
obj.textArea.AppendText(" Number of interfaces ..... : " + (nics.Length - 1) + "\n");
foreach (NetworkInterface adapter in nics) {
if (adapter.NetworkInterfaceType == NetworkInterfaceType.Loopback) continue;
IPInterfaceProperties properties = adapter.GetIPProperties();
obj.textArea.AppendText("\n");
obj.textArea.AppendText(adapter.Description + "\n");
obj.textArea.AppendText(String.Empty.PadLeft(adapter.Description.Length, '=')+"\n");
obj.textArea.AppendText(" Interface type ........... : " + adapter.NetworkInterfaceType + "\n");
obj.textArea.AppendText(" Interface name ........... : " + adapter.Name + "\n");
obj.textArea.AppendText(" Interface id ............. : " + adapter.Id + "\n");
obj.textArea.AppendText(" Physical Address ......... : " + adapter.GetPhysicalAddress().ToString() + "\n");
obj.textArea.AppendText(" Operational status ....... : " + adapter.OperationalStatus + "\n");
string versions = "";
if (adapter.Supports(NetworkInterfaceComponent.IPv4)) {
versions = "IPv4";
}
if (adapter.Supports(NetworkInterfaceComponent.IPv6)) {
if (versions.Length > 0) versions += " ";
versions += "IPv6";
}
obj.textArea.AppendText(" IP version ............... : " + versions + "\n");
if (adapter.Supports(NetworkInterfaceComponent.IPv4)) {
RegistryKey rk = Registry.LocalMachine.OpenSubKey(@"SYSTEM\CurrentcontrolSet\Services\Tcpip\Parameters\Interfaces\" + adapter.Id);
Object mtu = rk.GetValue("MTU");
IPv4InterfaceProperties ipv4 = properties.GetIPv4Properties();
obj.textArea.AppendText(" MTU ...................... : " + ipv4.Mtu + "\n");
obj.textArea.AppendText(" Registry MTU ............. : " + mtu.ToString());
}
}
}
private void Form1_Load(object sender, EventArgs e) {
}
private void button1_Click(object sender, EventArgs e) {
this.Dispose();
}
}
}