I am trying to set up remote access from my office to a piece of hardware in the field that is connected to the LAN port of my GL-AR300M. I cannot simply forward ports to it since the communication I need relies on broadcast messages. I thought that a VPN would easily solve this. I am far from an expert at networking and have spent many days trying to dial in this configuration. I’m at my wits end and desperately need help from others much smarter than me in the community!
I installed an OpenVPN server on my office machine, and have set up the OpenVPN client on the GL-AR300M in the field. The VPN connection works fine (I can connect directly to the GL-AR300M), but i cannot figure out how to get to my device which is plugged into the GL-AR300M’s LAN port.
I tried configuring the advanced router settings in Luci and bridging the VPN-Client adapter with the eth0 adapter. This doesn’t work and just breaks the VPN.
The OpenVPN server’s IP is 192.168.8.1. I’ve got it configured as TAP
The OpenVPN Client’s IP is 192.168.8.2. Like i said i can connect with this device as if it were right here in my office.
The device that I need to connect to is plugged into the LAN port of the GL-AR300M with an IP address of 192.168.8.3
I can SSH into the GL-AR300M and ping 192.168.8.3, but i cannot ping it from my local machine.
Please help!