filesharing over vpn with netbios

[Ondrej Sevecek]

hello,

Vista SP1 requires NetBIOS to connect to fileshares over VPN connections.

Any planned changes for SP2 or 7?

o.

 

[Robinson Zhang [MSFT]]

Hi,

Based on my knowledge, Windows Vista require NetBIOS over TCP/IP port 139
since Windows Vista does not add the RAS adapter GUID for SMB to the
lanmanserver, lanmanworkstation, and SMB registry keys. It's a known bug on
Windows Vista and it have been fixed in Windows Vista SP1. So, Windows
Vista SP1 doesn't require NetBIOS over TCP/IP port 139 to connect to
fileshares over VPN connections.

For your reference:

Windows Vista clients cannot access network shares over a VPN or dial-up
connection
http://blogs.msdn.com/windowsvistanow/archive/2008/03/28/windows-vista-clien
ts-cannot-access-network-shares-over-a-vpn-or-dial-up-connection.aspx

You cannot access SMB shares on a corporate network through a Remote Access
Service (RAS) connection from a computer that is running Windows Vista
http://support.microsoft.com/default.aspx?scid=kb;EN-US;933468

Hope it helps.

Robinson Zhang
Microsoft Online Support

 

[Ondrej Sevecek]

cool info. thank you very much.

ondrej.

 

[Ondrej Sevecek]

I have just checked the registry keys, but my LanManServer and
LanManWorkstation do not contain the VPN guids. I am running Vista SP1. How
could this happen? My installation is clean Vista SP1 64bit installation. No
config migration. I can send you the relevant registry keys if you are
interested.

thank you very much.

o.

 

[Robinson Zhang [MSFT]]

Hi,

Thank you for your reply.

On the page of KB933468
(http://support.microsoft.com/default.aspx?scid=kb;EN-US;933468), we can
find the following information.

Registry information
To use one of the hotfixes in this package, you do not have to make any
changes to the registry.

Modifying registry keys is a workaround. Windows Vista SP1 includes
KB933468 (http://technet.microsoft.com/en-us/library/cc749061.aspx), so the
current situation(No changes in registry) should be normal.

Thank you for your understanding.

Hope it helps.

Robinson Zhang
Microsoft Online Support

 

[Ondrej Sevecek]

the reaso why I ask is that my own Vista SP1 64bit computer actually cannot
access the fileshares unless there is NetBIOS enabled on the VPN interface
and the target computer has NetBIOS enabled and exceptions in its local
firewall opened.

o.

 

[Ondrej Sevecek]

if you like, I can give you wireshark/netmon traces of the communication.

o.

 

[Robinson Zhang [MSFT]]

Hi,

Thank you for latest reply. I understand that the issue still persists in
the Windows Vista SP1 64bit computer.

Given the situation, could you please help me confirm the following things?
Thank you for your cooperation.

1. When the issue occurs? Does it begin since clean installation?
2. Do you have other client computers? If so, does the issue occur on all
Windows Vista computers or specific computer?
3. Do you have Windows XP computer? Does it work fine on VPN?

According to KB933468 description, the issue should be resolved in Windows
Vista SP1. However, I recommend to take the workaround on KB933468 to test
it whether the issue can be resolved. If the issue can be resolved, it may
be a potential bug.

If the issue still persists, the issue can be caused by a specific factor.
Please download the Microsoft Product Support Reporting tool from the link
below:
http://download.microsoft.com/download/b/b/1/bb139fcb-4aac-4fe5-a579-30b0bd9
15706/MPSRPT_SETUPPerf.EXE

This information will help us to determine what factors are involved with
the issue(s) we are experiencing with your system. The MPS utility will
take about 5 to 15 minutes to gather information. This can be run at any
time and will utilize minimal processor time and memory and is quite
unobtrusive to clients currently accessing the server. It is required that
the currently logged on user have Administrative rights in order to allow
for proper operations of the MPS Reporting Tool.

If you have any questions regarding the usage or operations of the MPS
Reporting Tool please review the link below:
http://download.microsoft.com/download/b/b/1/bb139fcb-4aac-4fe5-a579-30b0bd9
15706/MPSRPT_SetupPerf_Readme.txt

On your system a CAB file will be generated for your convenience in the
%systemroot%\MPSReports\Setup\<Report Type>\Cab directory called:

%COMPUTERNAME%_MPSReports.CAB.

The CAB file will contain the reports generated by the MPS Reporting Tool.
Please use Windows Live SkyDrive (http://www.skydrive.live.com/) to upload
the file and then give me the download address.

In addition, please also upload Netmon traces of the communication to
Windows Live SkyDrive.

Thanks.

Robinson Zhang
Microsoft Online Support

 

[Robinson Zhang [MSFT]]

Hi Ondrej,

Would you mind letting me know the result of the suggestions? If you need
further assistance, feel free to let me know.

Have a great day!

Robinson Zhang
Microsoft Online Support