Meraki MX65 LTE failover

[StarDust]

Wanted to connect a LTE modem to the MX but looking at the documentation. It seems that in Canada only a few devices are supported.

I want to use Cypress Oxygen-3 modem. If only USB ports are available for the second WAN port, could I not use a USB to Ethernet dongle and will this work!

[AjitKumar]

Hi
If I understand you right.
You are considering a third party device (Router) which converts LTE USB to Ethernet.
The Ethernet Link from the 3rd party device will be used as Internet Link on WAN Port 2 of MX65 as a failover link.

I do not see any challenge in this setup as long as there is Internet on the Ethernet Link.

[Adam]

Do you want to use the device as an active secondary WAN connection or just for failover?

Do you have a single WAN connection or redundant WAN connections currently?

[StarDust]

Yes, you nailed it. I will be using this is an Ethernet active-active network design. The Cypress Oxygen 3 is a LTE gateway that will connect to the carriers wireless APN via a static IP. The only drawback to these are the constant keepalives so I'm anticipating about 2Gigs of data monthly. Unless I'm missing something here, I believe the USB connection would be active-failover which I believe can take up to 3 minutes to build the IPSec tunnel (VPN) and since this would be a PoS environment, this design is not an option.

Now, I have heard in the grapevine that Meraki will be bringing SIM supported LTE models this year. This being the case, would solve everything.

[Adam]

The USB is really only for a last ditch failover if WAN1 and WAN2 are down. 

Othwerise I prefer cradlepoint devices.  They work well to reliably convert cellular network to ethernet. 

[PhilipDAth]

I'm with @AjitKumar - don't use the USB devices because they are a real pain.  Get an LTE hot spot that has Ethernet ports, and plug it into a WAN port.