Hi,
 
I am trying to learn 
a bit about SMB. I sniffed the copying of a file from a shared folder in the LAN 
I belong to to my desktop. From some reason, the file was copied 3 times to my 
computer (3 Read AndX Responses), and the exact same process [NT 
Create AndX Request, NT Create AndX Response, Trans2 Request (SET_file_info), 
Trans2 Response (Set_file_info), Read AndX Request, Read AndX Response 
(containing the file Data), Close Request, Close Response] was repeated. It 
think it is not due to timeouts, because the responses were received before the 
following requests were sent. I have no idea why it happens, but it adds a lot 
of redundent traffic. Have any idea wat is the problem? Moreover, in the above 
process, my computer tries to SET_FILE_INFO. Why does it do so (SET info) if it 
only COPIES the file?
 
I attach the pcap 
file.
 
Thanks for your 
help,
 
Hila
Attachment:
CopyFile.pcap
Description: Binary data