>You're absolutely right! This does do the trick.
>Only question left (at least regarding this topic) what possible security
>'leaks' do I create, by leaving all UDP ports open?

That depends on what UDP ports your server may have open (and whether or 
not the UDP packets would get blocked elsewhere, such as at a 
firewall).  Most Windows installations have a WINS/Netbios UDP port open 
(137, 138, or 139 if I recall correctly) which can be dangerous if left 
open.  Other than that, usually the worst security problem with UDP ports 
open would likely be trojan horses -- but those can only get on the server 
after a serious security breach.

                                                    -Scott
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