Connecting to device on different IP range
I am currently working on a job that has roadside equipment sending in data to an office-based instation server via a private APN. This is currently working fine and data is being received. However, for maintenance reasons its is necessary to connect from the instation server back out to the roadside equipment's web GUI. Currently this isn't working! I think this is because they are on different IP ranges.
The setup is:
Roadside equipment: 192.168.6.38
Instation server: 192.168.4.35
instation router: 192.168.4.250
I've tried messing about with adding routes and changing the mask address but so far have had no luck.
Any ideas/advice would be very much appreciated!