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I'm currently seeing a lot of messages on my firewall stating that udp port 137 is being blocked. I suspect that when I use remote desktop to a remote system, that remote systems attempts to connect back to me via udp port 137. If this is true, why? Is this required or can I change this behavior?
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Answer accepted by question author
Hi
UDP 137 is used by NetBIOS File sharing in Windows 7.
Depending on what you do while you are using Remote Desktop on your network, it might invoke the UDP137.
If it does not impede anything functional that you need to do, leave it alone. The firewall Job is to block aspects of Network traffic. You do not have to feel "sorry" for it doing its Job.
Jack-MVP Windows Networking. WWW.EZLAN.NET
Thanks for the update. I'm just currious on why remote desktop invokes udp 137.
Remote Desktop [RDC] uses TCP Port 3389 and not UDP Port 137.
MS-MVP Windows Desktop Experience
"When all else fails try what the captain suggested before you started..."
I'm currently seeing a lot of messages on my firewall stating that udp port 137 is being blocked. I suspect that when I use remote desktop to a remote system, that remote systems attempts to connect back to me via udp port 137. If this is true, why? Is this required or can I change this behavior?
I'm currently seeing a lot of messages on my firewall stating that udp port 137 is being blocked. I suspect that when I use remote desktop to a remote system, that remote systems attempts to connect back to me via udp port 137. If this is true, why? Is this required or can I change this behavior?
