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can anyone tell me the protocol number for remote desktop protocol? (terminal svc)

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can anyone tell me the protocol number for remote deskt... - 9.Sep.2002 9:19:00 PM   
redss

 

Posts: 30
Joined: 9.Sep.2002
Status: offline 		I guess I am not searching right but I can't find anything in microsoft's site.
Post #: 1
RE: can anyone tell me the protocol number for remote d... - 9.Sep.2002 10:04:00 PM   
spouseele

 

Posts: 12782
Joined: 1.Jun.2001
From: Belgium
Status: offline 		Hi redss,

Terminal Services uses the RDP protocol (Remote Desktop Protocol): TCP port 3389.

HTH,
Stefaan

(in reply to redss)
Post #: 2
RE: can anyone tell me the protocol number for remote d... - 9.Sep.2002 11:03:00 PM   
redss

 

Posts: 30
Joined: 9.Sep.2002
Status: offline 		I know the port # is 3389 but I am looking for the protocol number for this particular protocol. I am trying to define a packet filter that will allow this particular protocol thru the firewall but at port 80.

(in reply to redss)
Post #: 3
RE: can anyone tell me the protocol number for remote d... - 9.Sep.2002 11:19:00 PM   
mylo

 

Posts: 138
Joined: 26.Mar.2002
Status: offline 		Redss,

You want to tunnel RDP through port 80. Forgive the abruptness but is there any particular reason why ?

Cheers,
Mylo

(in reply to redss)
Post #: 4
RE: can anyone tell me the protocol number for remote d... - 9.Sep.2002 11:23:00 PM   
spouseele

 

Posts: 12782
Joined: 1.Jun.2001
From: Belgium
Status: offline 		Hi redss,

RDP uses TCP and that is IP protocol number 6.

HTH,
Stefaan

(in reply to redss)
Post #: 5
RE: can anyone tell me the protocol number for remote d... - 9.Sep.2002 11:34:00 PM   
redss

 

Posts: 30
Joined: 9.Sep.2002
Status: offline 		mylo,

The RDP activeX control tunnels through port 80.

(in reply to redss)
Post #: 6
RE: can anyone tell me the protocol number for remote d... - 9.Sep.2002 11:40:00 PM   
redss

 

Posts: 30
Joined: 9.Sep.2002
Status: offline 		stefan,

i don't think it is protocol number 6.

(in reply to redss)
Post #: 7
RE: can anyone tell me the protocol number for remote d... - 9.Sep.2002 11:55:00 PM   
spouseele

 

Posts: 12782
Joined: 1.Jun.2001
From: Belgium
Status: offline 		Hi redss,

you said "The RDP activeX control tunnels through port 80". As far as I know, that's *not* true!

TSAC uses HTTP/HTTPS to get the connection parameters for the Terminal Server Client, but the RDP session is made on TCP port 3389 *unless* you configure an unstandard TCP port on the Terminal Server. [Big Grin]

BTW --- TCP *is* IP protocol number 6, UDP *is* IP protocol number 17. If you don't believe me, check out http://www.networksorcery.com/enp/protocol/ip.htm [Razz]

HTH,
Stefaan

(in reply to redss)
Post #: 8
RE: can anyone tell me the protocol number for remote d... - 10.Sep.2002 12:03:00 AM   
redss

 

Posts: 30
Joined: 9.Sep.2002
Status: offline 		the software vendor who is supplying the RDP service had it configure to work on port 80. Well, whatever it is, I could not get it to work over ISA. The default protocol rule allows all traffic going out from within. I talked to the vendor and he said he has RDP running on 80. If u have any idea, let me know.

(in reply to redss)
Post #: 9
RE: can anyone tell me the protocol number for remote d... - 10.Sep.2002 12:14:00 AM   
spouseele

 

Posts: 12782
Joined: 1.Jun.2001
From: Belgium
Status: offline 		Hi redss,

Aha... he is probably running RDP on an unstandard port number! [Big Grin]

By default ISA is redirecting traffic for port 80 to the web proxy service because ISA assumes it is HTTP. Of course that will not work. To solve that problem, reconfigure the HTTP Redirector on ISA to forward the request directly to the 'requested web server' and it should work. Check out http://www.isaserver.org/pages/article.asp?id=318 for details how to do that.

HTH,
Stefaan

(in reply to redss)
Post #: 10
RE: can anyone tell me the protocol number for remote d... - 10.Sep.2002 3:16:00 PM   
redss

 

Posts: 30
Joined: 9.Sep.2002
Status: offline 		stefaan,

By changing the redirector to go from retrieving from cache to straight to the server, it solved the problem. But what if I still want the cache functionality? Could I define any rule that dictates which site gets the cache and which site gets the straight connect?

Thanks for the help.

[ September 10, 2002, 03:16 PM: Message edited by: redss ]

(in reply to redss)
Post #: 11
RE: can anyone tell me the protocol number for remote d... - 10.Sep.2002 5:09:00 PM   
tshinder

 

Posts: 47490
Joined: 10.Jan.2001
From: Texas
Status: offline 		Hi Redss,

Just configure the browsers as Web Proxy clients.

HTH,
Tom

(in reply to redss)
Post #: 12
RE: can anyone tell me the protocol number for remote d... - 11.Sep.2002 3:45:00 PM   
redss

 

Posts: 30
Joined: 9.Sep.2002
Status: offline 		tshinder,

yes, I could very well do that, but i like the transparency of secure NAT. This is something very simple and should not be this difficult.

(in reply to redss)
Post #: 13

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