我正在创建一个C#winform应用程序,我希望在其中更改公共IP地址,而不是像(Hotspot-Shield,ZenMate,OpenVPN和其他人那样)更改IPv4地址。
我检查了以下链接,但没有找到足够的帮助,所以我发布了这个问题:
How can you change Network settings (IP Address, DNS, WINS, Host Name) with code in C#
我编写的代码与第一个链接的答案相同,并且还使用了库,但是当我通过google.com检查我的IP地址时,它仍然是相同的。我不知道套接字编程。
这是我的代码:
namespace WindowsFormsApplication1
{
class ChangeIP
{
public void SetIP(string ipAddress, string subnetMask, string gateway)
{
using (var networkConfigMng = new ManagementClass("Win32_NetworkAdapterConfiguration"))
{
using (var networkConfigs = networkConfigMng.GetInstances())
{
foreach (var managementObject in networkConfigs.Cast<ManagementObject>().Where(managementObject => (bool)managementObject["IPEnabled"]))
{
using (var newIP = managementObject.GetMethodParameters("EnableStatic"))
{
// Set new IP address and subnet if needed
if ((!String.IsNullOrEmpty(ipAddress)) || (!String.IsNullOrEmpty(subnetMask)))
{
if (!String.IsNullOrEmpty(ipAddress))
{
newIP["IPAddress"] = new[] { ipAddress };
}
if (!String.IsNullOrEmpty(subnetMask))
{
newIP["SubnetMask"] = new[] { subnetMask };
}
managementObject.InvokeMethod("EnableStatic", newIP, null);
}
// Set mew gateway if needed
if (!String.IsNullOrEmpty(gateway))
{
using (var newGateway = managementObject.GetMethodParameters("SetGateways"))
{
newGateway["DefaultIPGateway"] = new[] { gateway };
newGateway["GatewayCostMetric"] = new[] { 1 };
managementObject.InvokeMethod("SetGateways", newGateway, null);
}
}
}
}
}
}
}
/// <summary>
/// Set's the DNS Server of the local machine
/// </summary>
/// <param name="nic">NIC address</param>
/// <param name="dnsServers">Comma seperated list of DNS server addresses</param>
/// <remarks>Requires a reference to the System.Management namespace</remarks>
public void SetNameservers(string nic, string dnsServers)
{
using (var networkConfigMng = new ManagementClass("Win32_NetworkAdapterConfiguration"))
{
using (var networkConfigs = networkConfigMng.GetInstances())
{
foreach (var managementObject in networkConfigs.Cast<ManagementObject>().Where(objMO => (bool)objMO["IPEnabled"] && objMO["Caption"].Equals(nic)))
{
using (var newDNS = managementObject.GetMethodParameters("SetDNSServerSearchOrder"))
{
newDNS["DNSServerSearchOrder"] = dnsServers.Split(',');
managementObject.InvokeMethod("SetDNSServerSearchOrder", newDNS, null);
}
}
}
}
}
}
}
以下是我如何称呼这些方法:
{
static string local_ip;
string public_ip;
public static string GetLocalIPAddress() //Method For Getting Local Machine IP
{
var host = Dns.GetHostEntry(Dns.GetHostName());
foreach (var ip in host.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
return ip.ToString();
}
}
throw new Exception("Local IP Address Not Found!");
}
// Mehod End
local_ip = GetLocalIPAddress();
ChangeIP ip = new ChangeIP();
ip.SetIP(local_ip, null, null); // Calling Method
var getNIC = NetworkInterface.GetAllNetworkInterfaces();
NetworkInterface[] NI = NetworkInterface.GetAllNetworkInterfaces();
string nic = string.Empty;
string dnsServer = string.Empty;
foreach(var r in getNIC)
{
nic = r.Name;
}
foreach(NetworkInterface ninter in NI)
{
if(ninter.OperationalStatus == OperationalStatus.Up)
{
IPInterfaceProperties ipProperties = ninter.GetIPProperties();
IPAddressCollection dnsAddresses = ipProperties.DnsAddresses;
foreach(IPAddress dnsAdrs in dnsAddresses)
{
dnsServer = dnsAdrs.ToString();
}
}
}
ip.SetNameservers(nic, dnsServer); // Calling Method
public_ip = new WebClient().DownloadString("http://icanhazip.com");
}
答案 0 :(得分:0)
您如何描述您的问题不是互联网(应该如何)的工作方式。
Windows不允许您编写原始IP数据包,因此您需要使用TAP / TUN驱动程序。但是,虽然您发送了欺骗源IP地址的数据包,但您和目的地之间的互联网不会返回路由。
如果您在一个IP地址块后面操作,并且只想在该块中欺骗另一个地址,则返回地址将返回到您的本地路由器,但仍然无法返回给您
除非您使用TAP / TUN,否则没有其他方法可以窃取他人的公共IP地址,不包括超出本论坛范围的其他网络安全漏洞利用。
即使使用TAP / TUN,您在一个方向上可以通过欺骗性IP数据包实现的目标非常有限。事实上,ISP可能会过滤出欺骗性的IP地址。