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I usually connect to other Windows computers on my network using My Computer > [right click] > Manage and then Computer management > [right click] > Connect to another computer.

I would like to know which ports/protocols are being used when I do this.

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migrated from Apr 1 '11 at 20:49

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If I recall correctly, this is handled with RPC on port 445.

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I think it could also be done via the old NBT ports 137-139, if 445 wasn't a possibility for some reason. – Jason Sherman Apr 2 '11 at 3:06

Be aware that Windows is using dynamic port allocation for some services e.g. Disk Management which is using RPC. Meaning if you want to open a port in your hardware firewall you need to open one of the default defined ports; fore more information see: Meaning Microsoft finally uses one of these ports 49152 - 65535.

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