IP forwarding/IP passthrough


I have two MAX BR1 Mini LTEA units. I also will be receiving two SIM cards from Verizon with static IP addresses. These units will be plugged in with an ethernet cable to a single client device.

I want to set up the system so that the two client devices can communicate with each other as if they’re on the same local network. I’ve been reading through the manual and also looking at other topics on the forum to try to figure out how to configure these systems. It seems like I would either need to enable the “IP Forwarding” option in the Cellular WAN, or enable “IP Passthrough” somewhere (not sure where), or possibly set up a NAT between the cellular IP and the private IP.

For NAT, I’ve tried similar settings on other network devices but never got it to work, so I would like to avoid that if possible.

Would setting up “IP Forwarding” get this working the way I want? So from my one device I would be able to ping the other device on the static IP address provided to me by Verizon?


You Want to use Layer 2 VPN to achieve this.


Ah, wait a moment. That’s not what you said earlier… earlier you asked for the LAN clients to appear to be on the same network. I assumed you meant the same secure private network. If so then you need a layer two PepVPN. Peter west has a good video on that here: https://www.youtube.com/watch?v=KiFrxH46qM0

And i made a video about creating a ‘Long distance ethernet cable’ (layer 2 vpn) ages ago here https://www.youtube.com/watch?v=sI_Ucf74IQQ

If on the other hand you want to give a single LAN device the static public IP from the verizon SIM then Public IP Passthrough is what you want.