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CIFS,RDP failure

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CIFS,RDP failure - 12.Apr.2010 5:39:18 AM   
diagdave

 

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Joined: 26.Aug.2008
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Hi,
I have a clean install of Forefront TMG installed. I have 2 networks configured, internal and dmz. A computer in internal has ALL Access to dmz however i cannot RDP or access a cifs share on the server, logs show it is trying to connect then errors with:

A connection was closed because no SYN/ACK reply was received from the server.

With an Isa 2006 box this same rule works fine .We are also having some odd problems with dns requests via the same box. It is a Dell PowerEdge 2800 with Intel Pro/1000 MT NIC's. An help would be grateful

Regards,
David

< Message edited by diagdave -- 12.Apr.2010 7:54:04 AM >
Post #: 1
RE: CIFS,RDP failure - 12.Apr.2010 11:39:36 AM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline
Hi David,

Do you have a Route or NAT relationship between the Internal Network and DMZ?

Thanks!
Tom

_____________________________

Thomas W Shinder, M.D.

(in reply to diagdave)
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RE: CIFS,RDP failure - 12.Apr.2010 12:03:18 PM   
diagdave

 

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Joined: 26.Aug.2008
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Sorry its a route relationship. We have tried this serveral times around 4 reinstalls.
Thanks David

(in reply to tshinder)
Post #: 3
RE: CIFS,RDP failure - 13.Apr.2010 2:02:41 PM   
diagdave

 

Posts: 8
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Has anyone had success with these nic's? Or does anyone recommend another nic? Does anyone have any preference to which OS to use: e.g if to use R2?
Thanks David

(in reply to diagdave)
Post #: 4
RE: CIFS,RDP failure - 16.Apr.2010 7:21:23 AM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
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OK, if there is a route relationship, the problem might be a routing issue? What's the default gateway on the RDP host?

Tom

_____________________________

Thomas W Shinder, M.D.

(in reply to diagdave)
Post #: 5
RE: CIFS,RDP failure - 16.Apr.2010 7:55:28 AM   
diagdave

 

Posts: 8
Joined: 26.Aug.2008
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Hi Tom,
The Gateways point to the relative Nics in the forefront server
e.g
Internal: 192.168.1.1

DMZ:192.168.3.1

I have however just installed Forefront on a esxi box, with exactly the same config and it has worked. So it must be a hardware issue.

(in reply to tshinder)
Post #: 6
RE: CIFS,RDP failure - 16.Feb.2011 5:07:52 AM   
jdbuck

 

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Joined: 16.Feb.2011
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I'm currently getting the exact same issue with an installation or Forefront 2010. Again it all virtual but stil not joy.

(in reply to diagdave)
Post #: 7
RE: CIFS,RDP failure - 16.Feb.2011 6:08:08 PM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline
That makes sense - if the same configuration works in one place but not the other, it sounds like you had the firewall configuration right from the start.

Thanks for the follow up!
Tom

_____________________________

Thomas W Shinder, M.D.

(in reply to diagdave)
Post #: 8

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