To access a controller via a router, what Ethernet ports must be forwarded?
Normally, if you wish to access a controller via a local network from a PC or another controller, only the controller's IP address information is necessary. However, if you wish to access the controller remotely through a router, you must typically specify the specific Ethernet ports that the router is to map (forward) to the controller.
The following is a list of the Ethernet ports that are utilized by a controller:
| Function | Required Ethernet Ports |
|---|---|
|
Web interface (HTTP) |
80 |
|
FTP server |
20 - 21 |
|
Guidance Development Environment (GDE) |
1402 - 1404 |