Using VPN to remotely connect to a PLC

[instruverse]

Hello,

i have a PLC connected to to rut200 . The IP address of the rut200 is 192.168.1.2

IP address of plc: 192.168.1.6

I am using a VPN to connect and the ip address of the rut clients is 192.168.1.22 and user is 192.168.17.

I added route to the PLC and enabled LAN forwarding.

When connect to the rut VPN from my computer i am able to ping 192.168.1.22 but i cannot ping the plc or see it in the programming software.

Where am i going wrong? Does the PLC have to have a gateway?

[Marcelo.Barros]

Hello, @instruverse

@instruverse

Does the PLC have to have a gateway?

Yes… THE PLC need to have the gateway configured.

[Marija]

Hello @instruverse,

Please let us know if you still require any assistance.

Best regards,

[instruverse]

Hello, i was finally able to go on site and put in the gateway on the PLC but still i cannot get to the PLC. I have also moved the VPN client addressees to a different subnet ie the user and the RUT200 are on 192.168.255.6 and 192.168.255.10 which are given by dhcp.

PLC is on 192.168.1.5 and i can ping it from rut200 web interface. gateway is 192.168.1.2

RUT200 LAN is 192.168.1.2.

[Matas]

Hi,

Could you clarify which VPN you are using? Judging from your description, it sounds like you’re using RMS VPN Hub, correct me if I’m wrong though.

Suggestions from my end:

1. Remove any routes that you have in the VPN Hub, and add a route like so:
   
   
2. After adding the new route, restart the VPN Hub.
3. Head to the clients tab in the VPN Hub, and hit the “Update configuration and certificates” button:
   
   

Finally, re-test the pinging, if it still doesn’t work - please confirm that the PLC is reachable from the device itself, in other words, make sure you’re able to ping the PLC from the RUT200.

Regards,
M.