C # implement vro disconnection and change the public ip instance code

Copy codeThe Code is as follows: public static void Disconnect (){
String url = "disconnected ";
String uri = "http: // 192.168.1.1/userRpm/StatusRpm.htm? Disconnect = "+ System. Web. HttpUtility. UrlEncode (url, System. Text. Encoding. GetEncoding (" gb2312 ") +" & wan = 1 ";
String sUser = "admin ";
String sPwd = "admin ";
String sDomain = "";
NetworkCredential oCredential;
HttpWebRequest oRequest = (System. Net. HttpWebRequest) WebRequest. Create (uri );
If (oRequest! = Null)
{
ORequest. ProtocolVersion = HttpVersion. Version11; // send request
ORequest. Method = "GET ";
ORequest. ContentType = "application/x-www-form-urlencoded ";
ORequest. UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6.4;. net clr 2.0.50727;. net clr 3.0.20.6.2152;. net clr 3.5.30729 )";
ORequest. Referer = "http: // 192.168.1.1 ";

If (sUser! = String. Empty)
{
OCredential = new NetworkCredential (sUser, sPwd, sDomain );
ORequest. Credentials = oCredential. GetCredential (new Uri (uri), String. Empty );
}
Else
{
ORequest. Credentials = CredentialCache. DefaultCredentials;
}
StreamReader sr = new StreamReader (oRequest. GetResponse (). GetResponseStream (), System. Text. Encoding. Default );
String line = sr. ReadToEnd ();
Sr. Close ();
If (line. IndexOf ("LAN port status")>-1) // logon successful
{
Console. WriteLine ("Logon disconnected ");
}
Else
{
Console. WriteLine ("failed to log on disconnected ");
}
}
}