C#实现路由器断开连接,更改公网ip的实例代码

public static void disconnect(){
    string url = "断 线";
    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 3.0.4506.2152; .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口状态") > -1)//登录成功
        {
             console.writeline("断开登录成功");
        }
        else
        {
            console.writeline("断开登录失败");
        }
    }
}