how to get default gateway in IPV6

Question

Hi all how to get default gateway in IPV6 using c# and how to set the dhcp ipv6

Vulpes · Answer

The Win32_NetworkAdapterConfiguration class has an EnableDHCP method which is documented here: http://msdn.microsoft.com/en-us/library/aa390378(v=vs.85).aspx As it takes no parameters, there's no obvious way to enable DHCP for IPV6 as opposed to IPV4 but I would imagine that if the DHCP server has an IPV6 address then that's what will be used. To invoke it here, the syntax would be: uint result = (uint)mc.InvokeMethod("EnableDHCP", null); if (result == 0) { Console.WriteLine("DHCP has been enabled. No reboot is required"); } else if (result == 1) { Console.WriteLine("DHCP has been enabled. Please reboot"); } else { Console.WriteLine("Enabling DHCP failed with an error code of {0}", result); }

suhas setty · Answer

Hi Vulpes, I want to simply enable DHCP for ipv6

Vulpes · Answer

Well, the WMI class Win32_NetworkAdapterConfiguration is supposed to support IPV6 from Vista onwards so I'd see if the following code yields any info. You might need to add a reference to System.Management.dll to your project: using System; using System.Management; using System.Linq; class Test { static void Main() { var mc = new ManagementClass("Win32_NetworkAdapterConfiguration"); foreach(ManagementObject mo in mc.GetInstances()) { string[] gateways = mo["DefaultIPGateway"] as string[]; if (gateways != null) { string[] ipv6_gateways = gateways.Where(g => g.Contains(":")).ToArray(); if (ipv6_gateways.Length > 0) { foreach(string g in ipv6_gateways) { Console.WriteLine("IPV6 Default Gateway : {0}", g); } } else { Console.WriteLine("No default gateway for IPV6 was detected"); } } } Console.ReadKey(); } } Sorry, I didn't quite get the second part of your question. Do you want to simply enable DHCP because WMI has a method for that?