Different subnet routes in VPN hub

Hi.

We have configured a VPN HUB on RMS with one RUT300 (192.168.100.1; 255.255.0.0)
The WAN adress of the router is 192.168.1.7.
On the LAN ports we have a PLC with other PLC related devices.
The addresses of the profinet devices are;
PLC: 192.168.100.2
DEVICE1: 192.168.100.3
DEVICE2: 192.168.100.4
ROBOT: 192.168.125.1 (needs to be on a different subnet)

We added the above mentioned routes.

We can connect to the PLC and go online with the PLC software. This is ok.
We have a problem connecting with the robot.
Pinging the robot 192.168.125.1 always end with Time-Out.

Please advise how can we connect to the robot.

Hello,

With this subnet mask, the networks of your LAN and WAN interfaces overlap. I would suggest to configure one of the ports on RUT300 as an untagged VLAN in 192.168.125.0/24 network, and change LAN network to 192.168.100.0/24. Then, in RMS VPN Hub settings, you can add two routes:

192.168.100.0 255.255.255.0 via RUT300
192.168.125.0 255.255.255.0 via RUT300

Once you set-up a VLAN, you will have an interface in the 192.168.125.0/24 network on RUT300. Make sure that the ROBOT has a default gateway configured and is pointing towards the VLAN inteface on RUT300 (for example, 192.168.125.1).

You can find VLAN instructions here.

Kind Regards,

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