GW 802 WebAccess Application, OES2 SP2

Hi everybody,
I used to apply the following code in gw.conf for redirection and use of SSL:
<IfModule !mod_rewrite.c>
LoadModule rewrite_module /usr/lib/apache2/
<IfModule mod_rewrite.c>
RewriteEngine on
Rewritecond %{SERVER_PORT} ^80$
RewriteRule ^/gw/(.*) https://%{HTTP_HOST}/gw/$1 [NC,R,L]
Force SSL on GroupWise 8 WebAccess and Calendar Publishing | Novell User Communities

Connecting from outside everything works fine.

From inside users can still reach the OES Welcome Page by typing the server name in the browser.
Is there a way to configure so that users are always redirected to GW-WA login page, also from inside without getting the chance to come to the OES Welcome Page?

Any help/ideas appreciated.

Thanks, Holger