Connecting to device on different IP range

[ckhorder1]

Advice needed!

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
192.168.7.119

Instation server: 192.168.4.35
255.255.255.0 mask
192.168.4.250 gateway

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!

Chris

 

[aaab]

The router must have some way of connecting to the .6 and .7 network. It doesn't look like you have provided all the information that you can.

How does the Roadside equipment connect to the office?

 

[eibgrad]

Assuming this a NAT router, you need to use port forwarding to map addresses from the instation server side, to the local addressing behind the NAT router. It's really nothing more than a remote access problem. And therefore requires the same solution.

 

[ckhorder1]

Thanks for the replies. I'm not a networking expert and my customer's IT dept seem even less knowledgable than me in trying to solve this!

The roadside equipment has vodafone sim cards that are registered on the customer's private APN. Each SIM gets automatically assigned an IP address on the network (all are 192.168.6.* or 192.169.7.*). The instation server (192.168.4.35) is set as the backend address on the equipment to send the data by FTP. This works fine. The problem is trying to connect back out to the web-page of the equipment from the instation. I will try setting up the port forwarding rules, would you have an idea of what they might look like?

 

[eibgrad]

There should be a section on the router's GUI for port forwarding, usually uses those very words.