VPN connection via guest wifi network only

Hi. I am new to this forum and fairly new to Teltonika as well. I have a RUTX14 router running at my home office with a 4G cellular connection.

I am often testing several wifi connected PLC devices in my home office but I want ONLY these devices to connect through a VPN to my remote work office network so that other remote user can also access them from the work LAN.

My thought was to create something like a guest wifi connection, which my test devices can connect to, and somehow apply the VPN connection only to devices which connect to that guest wifi. Is this possible?

I have looked through the examples on line and while I can see an example for using 2 Teltonika routers, I can’t find out how to do this with pre-existing corporate network using non Teltonika routers. I think the VPN connection my PC uses is PPTP?

Any ideas on how to do this would be really appreciated.


It should be noted, that routing the entire PLC traffic through VPN is not necessary to reach them from remote networks. It should be enough to establish a VPN connection between your office network and the RUTX14 and add the route to RUTX14 LAN or to the PLCs in particular.
We have a configuration example for PPTP here: PPTP configuration examples RutOS - Teltonika Networks Wiki
Although it should be noted, that PPTP should be avoided, as it does not encrypt any traffic sent through it. This could be a security risk if any sensitive data is being exchanged.
As for actually reaching the PLCs from the office network, a route will need to be added on the office router/firewall to your LAN network, and RUTX14 will simply need to connect to the PPTP server.
Hope this helps!

Best regards,

Thank you for helpful reply.
I’m pretty sure my cellular connection currently does not have a public IP address. I believe its a dynamic IP address behind the service providers firewall. Will the example you gave still work with this or will I need to change this?

Also can you confirm, if I can establish this VPN connection and add routing to a particular PLC, all other traffic will bypass the VPN? (Sorry I’m not very up on this networking stuff :slight_smile: )


Public IP is not necessary on the client side, so that should not be an issue.
As for reaching the PLC via VPN, that is correct, if the other side does not contain any routes to the same network as your LAN, it should work properly.

Best regards,

Thank you so much. I will try it and see if it works.

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