C#实现得到本机IP以及网关地址

// 得到本机IP
private string GetLocalIP()
{
//本机IP地址
string strLocalIP = "";
//得到计算机名
string strPcName = Dns.GetHostName();
//得到本机IP地址数组
IPHostEntry ipEntry = Dns.GetHostEntry(strPcName);
//遍历数组
foreach(var IPadd in ipEntry.AddressList)
{
//判断当前字符串是否为正确IP地址
if (IsRightIP(IPadd.ToString()))
{
//得到本地IP地址
strLocalIP = IPadd.ToString();
break;
}
}
return strLocalIP;
}

      //得到网关地址private string GetGateway(){string strGateway = "";//获取所有网卡NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();//遍历数组foreach (var netWork in nics){//单个网卡的IP对象IPInterfaceProperties ip = netWork.GetIPProperties();//获取该IP对象的网关GatewayIPAddressInformationCollection gateways = ip.GatewayAddresses;foreach(var gateWay in gateways){//如果能够Ping通网关if(IsPingIP(gateWay.Address.ToString())){//得到网关地址strGateway = gateWay.Address.ToString();//跳出循环break;}}//如果已经得到网关地址if (strGateway.Length > 0){break;}}return strGateway;}

/// 尝试Ping指定IP是否能够Ping通/// <param name="strIP">指定IP</param>/// <returns>true 是 false 否</returns>public static bool IsPingIP(string strIP){try{Ping ping = new Ping();//接受Ping返回值PingReply reply = ping.Send(strIP, 1000);//Ping通return true;}catch{//Ping失败return false;}}