| Electronics > Beginners |
| Connect to USB device over network |
| (1/1) |
| metrologist:
I have a USB device that receives SCPI commands over raw socket port 9001. I can send *IDN? using Putty when connecting to localhost port 9001. I got the IP address of my Windows PC and then went to another PC on the network and tried sending to IP port 9001 and there is no connection. I went to my PC, Windows firewall and added inbound and outbound rules to open port 9001, and still no connection. I used TCP protocol. Any idea what to try next? Could this be blocked by antivirus or network security policy? For example, I am not able to execute batch files via scheduled task (I think just from or on network files, but need to check if a local file will execute on local files). |
| KaneTW:
* Is the USB device bound to 127.0.0.1 or any interface? If it's on 127.0.0.1, see if you can change it in the config, use SSH forwarding or e.g. http://woshub.com/port-forwarding-in-windows/ * * check this via netstat /a /n on Windows and look for something like TCP 0.0.0.0:43921 0.0.0.0:0 LISTENING * Is your Firewall blocking 9001 incoming? |
| metrologist:
The USB device has some kind of back end software installed on the PC. I think this utility software acts as a local server that communicates via USB to the device, and the software I/O is via TCP/IP raw socket on port 9001. So something is blocking communication from one PC term program to another PC host program. |
| KaneTW:
What does the netstat line for port 9001 say? |
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