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Forum Discussion
robinjamesshort
Aug 11, 2025Aspirant
8000P Port forwarding issue
I have opened port 9100 on several IP's internally but when I try to access the port form the public IP the Port is not opened?? Screen shot below of my issue, I have one port for my cameras that ope...
- Aug 11, 2025
This appears to be set up correctly. connecting to
<public IP>:9101 should connect to 192.168.1.240:9100
<public IP>:9102 should connect to 192.168.1.241:9100
etc.
It is often useful to double check that the public IP is actually "public":
https://en.wikipedia.org/wiki/Private_network
and also to double check by connecting to Gibson Research Shields Up! and entering the port numbers (9101, 9102, 9103, 9104, 9105)
Some devices distinguish between "local" and "remote" network connections. Windows, for example, has separate firewall rules for the two types of network connections.
Does the printer documentation say anything about this?
p.s. My Epson printer has a web interface for printer diagnostics. I sometimes forward port 80 to the printer as an easy way to determine that port forwarding is working. (and then I turn it off again).
CrimpOn
Aug 11, 2025Guru - Experienced User
This appears to be set up correctly. connecting to
<public IP>:9101 should connect to 192.168.1.240:9100
<public IP>:9102 should connect to 192.168.1.241:9100
etc.
It is often useful to double check that the public IP is actually "public":
https://en.wikipedia.org/wiki/Private_network
and also to double check by connecting to Gibson Research Shields Up! and entering the port numbers (9101, 9102, 9103, 9104, 9105)
Some devices distinguish between "local" and "remote" network connections. Windows, for example, has separate firewall rules for the two types of network connections.
Does the printer documentation say anything about this?
p.s. My Epson printer has a web interface for printer diagnostics. I sometimes forward port 80 to the printer as an easy way to determine that port forwarding is working. (and then I turn it off again).
robinjamesshort
Aug 11, 2025Aspirant
Thanks, I know the public ip is good as I can see the port 37777 is open and broadcasting correctly for my cameras, the issue if the 91xx ports that are set up in the same manner but the ports come back as blocked ??