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Windows File Sharing Ports

Posted on 2003-02-21
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Anyone know which ports are used by Windows for file sharing?  I am trying to connect to my home machine from work and have to go through a firewall, so must open the correct port(s).  For example, I would like to be able to connect to \\maymachine\c$ from work.

Also, anyone know where I can find a listing of all the reserved ports used by Windows.
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Question by:Harley12
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ijg0 earned 100 total points
ID: 7994754
The port numbers depend on the version of windows you are using. You will need to enable the following ports for all versions of windows:

137 - (UDP) NetBios name service
138 - (UDP) NetBios datagram
139 - (TCP) Netbios port for windows file and printer sharing

In windows 2000 a new transport was added over port 445 so you will have to enabl eport 445 as well as the others above.

I don't know of a good list of ports specifically for windows only but a general list of all ports can be found at http://www.iana.org/assignments/port-numbers

Hope this helps
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Expert Comment

by:ijg0
ID: 7994759
The port numbers depend on the version of windows you are using. You will need to enable the following ports for all versions of windows:

137 - (UDP) NetBios name service
138 - (UDP) NetBios datagram
139 - (TCP) Netbios port for windows file and printer sharing

In windows 2000 a new transport was added over port 445 so you will have to enabl eport 445 as well as the others above.

I don't know of a good list of ports specifically for windows only but a general list of all ports can be found at http://www.iana.org/assignments/port-numbers

Hope this helps
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Author Comment

by:Harley12
ID: 7995327
Thats what I needed. Thanks for your help.
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