//这两个是系统里的ActiveX插件   用来获取ip以及物理地址
<OBJECT   id=locator   classid=CLSID:76A64158-CB41-11D1-8B02-00600806D9B6   VIEWASTEXT> </OBJECT>
<OBJECT   id=foo   classid=CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223> </OBJECT>

        <SCRIPT   language=JScript   event=OnObjectReady(objObject,objAsyncContext)   for=foo>
       if(objObject.IPEnabled   !=   null   &&   objObject.IPEnabled   !=   "undefined "   &&   objObject.IPEnabled   ==   true)
       {
       if(objObject.MACAddress   !=   null   &&   objObject.MACAddress   !=   "undefined ")
       MACAddr   =   objObject.MACAddress;
       if(objObject.IPEnabled   &&   objObject.IPAddress(0)   !=   null   &&   objObject.IPAddress(0)   !=   "undefined ")
       IPAddr   =   objObject.IPAddress(0);
       if(objObject.DNSHostName   !=   null   &&   objObject.DNSHostName   !=   "undefined ")
       sDNSName   =   objObject.DNSHostName;

       }
       </SCRIPT>
       <SCRIPT   language=JScript>
       var   service   =   locator.ConnectServer();
       var   MACAddr   ;
       var   IPAddr   ;
       var   DomainAddr;
       var   sDNSName;
       service.Security_.ImpersonationLevel=3;
       service.InstancesOfAsync(foo,   'Win32_NetworkAdapterConfiguration ');

       </SCRIPT>        <SCRIPT   language=JScript   event= "OnCompleted(hResult,pErrorObject,   pAsyncContext) "   for=foo>
   alert("物理地址"+MACAddr+"IP地址"+IPAddr+"主机名"+sDNSName))
       </SCRIPT> "