c# - Change remote IP address programmatically using WMI -


i writing application change ip addresses of local , remote machines using wmi. code changes gateway , dns of remote machine , same code (in different class , minus management scope part) changes of data (the 2 ips, gateway, dns) locally. problem doesn't change remote ip address. please can advise have looked everywhere answer?

i have tested on windows 7 , xp no firewalls , .net 4 installed on remote machines 

class remoteipchange { public string settillip(string ipaddress1, string ipaddress2, string subnetmask, string gateway) { connectionoptions connection = new connectionoptions(); connection.username = "username"; connection.password = "password"; connection.authority = "ntlmdomain:domain"; managementscope scope = new managementscope( "\\\\"+ipaddress1+"\\root\\cimv2", connection); scope.connect(); objectgetoptions o = new objectgetoptions(); managementpath p = new managementpath("win32_networkadapterconfiguration"); managementclass objmc = new managementclass(scope,p,o); managementobjectcollection objmoc = objmc.getinstances(); foreach (managementobject objmo in objmoc) { if (!(bool)objmo["ipenabled"]) continue; try { managementbaseobject objnewip = null; managementbaseobject objsetip = null; managementbaseobject objnewgate = null; managementbaseobject objnewdns = null; objnewip = objmo.getmethodparameters("enablestatic"); objnewgate = objmo.getmethodparameters("setgateways"); objnewdns = objmo.getmethodparameters("setdnsserversearchorder"); //set defaultgateway objnewgate["defaultipgateway"] = new string[] { gateway }; objnewgate["gatewaycostmetric"] = new int[] { 1 }; //set ipaddress , subnet mask objnewip["ipaddress"] = new string[] { ipaddress1, ipaddress2 }; objnewip["subnetmask"] = new string[] { subnetmask, subnetmask }; //set dns servers objnewdns["dnsserversearchorder"] = new string[] {gateway }; //invoke changes objsetip = objmo.invokemethod("enablestatic", objnewip, null); objsetip = objmo.invokemethod("setgateways", objnewgate, null); objsetip = objmo.invokemethod("setdnsserversearchorder", objnewdns, null); return ("updated ipaddress " + ipaddress + ", \nsubnetmask " + subnetmask + " \nand default gateway " + gateway + "!"); } catch (exception ex) { return ("unable set ip : " + ex.message); } } return "code has not run"; } }

i check returnvalue invokemethod on enablestatic. pretty sure passing in null subnet problem. provide valid array of subnets match ip addresses instead of null.


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