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Restricting RDP with Windows Firewall....but it doesn't work?!

Posted on 2010-11-15
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Last Modified: 2012-05-10
peeps,

I'm trying to restrict RDP access so that only people on the WAN and LAN can access the terminal services box, along with the possibility of a few external IP addresses. We're on Windows 2008. In Windows Firewall, I've gone into 'Inbound Rule' and chosen RDP->Properties->Scope.

Within the scope, I've added the internal range which is 10.0.0.1-10.0.0.254.

Then I've added the external IP. Apply, OK.

If I try to log onto remote desktop using the local IP 10.0.0.15 (that's the IP), it won't connect me. If I enter the external IP, then it does.

Does anybody know why this happens? And how this can be fixed?

Thanks a lot
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Question by:Yashy
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Expert Comment

by:tstritof
ID: 34137740
Hi,

what error are you getting? Can you ping 10.0.0.15?

Regards,
Tomislav
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Author Comment

by:Yashy
ID: 34137816
No errors, it just won't connect and then times out with the error message. But I know that it's the firewall.

Yes, I can definitely ping the server.

As soon as I remove the IP address from the  'Remote IP' section within the Scope, I can log on locally.
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tstritof earned 2000 total points
ID: 34138241
Oh I know what it is.

In Remote addresses you must specify all addresses from which clients will be connecting inluding your LAN scope. The Local IP address is the address TS listens on (IP address of TS NIC).
 Firewall scopes.
Hope this helps.

Regards,
Tomislav
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Author Comment

by:Yashy
ID: 34138480
You Tom, deserve a fat medal. Thank you.
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LVL 7

Expert Comment

by:tstritof
ID: 34138493
:) Glad to help.

Regards
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Expert Comment

by:Widescope
ID: 34537755
Thanks very much, this helped me too.  It's been driving me up the wall for a couple of days now.

Cheers
Steve
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