IP Banning issues

<object runat="Server" scope="Application"
id="rstActiveUsers" progid="ADODB.Recordset">
</object>
<script language="VBScript" runat="Server">
' The first thing you should notice is the top line.
' It creates an application scoped recordset object
' named rstActiveUsers that I'll use to store all
' our user information.
'
' Note: I've wrapped it for readability
Sub Application_OnStart()
 ' Selected constants from adovbs.inc
 Const adInteger = 3
 Const adVarChar = 200
 Const adDate = 7
 
 ' Here I set up in memory active user recordset
 ' by adding the fields I want to it and defining
 ' their data types.
 
 rstActiveUsers.Fields.Append "id", adInteger
 rstActiveUsers.Fields.Append "ip", adVarChar, 15
 rstActiveUsers.Fields.Append "browser", adVarChar, 255
rstActiveUsers.Fields.Append "user", adVarChar, 50
 rstActiveUsers.Fields.Append "started", adDate
 ' Next I open our recordset so that we can use it.
 ' That basically gets everything ready for our
 ' first user.
 rstActiveUsers.Open
End Sub
Sub Session_OnStart()
 ' Set session timeout to 20 minutes
 Session.Timeout = 20
 if Request.ServerVariables("REMOTE_HOST") = "65.214.38.211" then 
 response.redirect "robot.html"
 end if
 if Request.ServerVariables("REMOTE_HOST") = "207.46.98.139" then 
 response.redirect "robot.html"
 end if
 if Request.ServerVariables("REMOTE_HOST") = "64.124.85.194" then 
 response.redirect "robot.html"
 end if
 if Request.ServerVariables("REMOTE_HOST") = "64.124.85.97" then 
 response.redirect "robot.html"
 end if
 
 
 ' Set a session start time.  This is pretty pointless,
 ' but it does ensure that we start a session and
 ' assign the user a session id and it can help
 ' troubleshooting if we ever need it.
 Session("Start") = Now()
 
 ' Move to the end so records are added in order.
 ' Again not of any real importance, but it keeps our
 ' user table nice and orderly.
 If Not rstActiveUsers.EOF Then rstActiveUsers.MoveLast
 ' Add a record and insert users data.  I'm just
 ' storing some basic info, but naturally you're free
 ' to store whatever you want.
 rstActiveUsers.AddNew
 
 rstActiveUsers.Fields("id").Value = _
  Session.SessionID
 
 rstActiveUsers.Fields("ip").Value = _
  Request.ServerVariables("REMOTE_HOST")
 
 rstActiveUsers.Fields("browser").Value = _
  Request.ServerVariables("HTTP_USER_AGENT")
username = Request.Cookies("user")("mynameis")
if username = "" then username = "Guest"
rstActiveUsers.Fields("user").Value = username
 
 rstActiveUsers.Fields("started").Value = _
  Now()
 
 rstActiveUsers.Update
 
 ' Now that we've got the information, all that's
 ' left is to display it.  See test_page.asp for a
 ' demo.  It includes the pages show_count.asp and
 ' show_users.asp which can also be used
 ' individually if desired.
End Sub
Sub Session_OnEnd()
 ' Selected constants from adovbs.inc
 Const adSearchForward = 1
 Const adBookmarkFirst = 1
 Const adAffectCurrent = 1
 ' Find the appropriate record.  Using session id is the
 ' easiest way since I use this as the primary key.
 ' This line positions us on the appropriate record.
 rstActiveUsers.Find "id = " & Session.SessionID, _
  0, adSearchForward, adBookmarkFirst
 
 ' Now that we're on the record, delete it.
 ' I use the EOF to make sure we've got one.
 If Not rstActiveUsers.EOF Then
  rstActiveUsers.Delete adAffectCurrent
 End If
End Sub
Sub Application_OnEnd()
 ' Not like it really matters, but for the sake of
 ' good coding practice I close the recordset when
 ' our application is shutting down.
 rstActiveUsers.Close
End Sub
</script>