Dual-modem in IP pass-through mode

Dual modems mean that a FortiExtender unit comes with two LTE interfaces for internet connectivity. These two LTE interfaces can be used for link load balancing. FortiExtender works in local IP pass-through mode, as an extended modem of any router. In this mode, FortiExtender must be connected directly to the WAN port of the router and the router WAN port must be in DHCP mode.

Enable local IP pass-through mode

To enable local IP pass-through mode:

FX212E5919000009 # config system management local

FX212E5919000009 (local) # set mode ip-passthrough

FX212E5919000009 (local) # end

FX212E5919000009 # config system management

FX212E5919000009 # set discovery-type local

FX212E5919000009 # end

Configure a virtual Wire Pair

A virtual wire pair configuration is necessary to enable the IP Pass-through forwarding between two ports.

To configure a virtual pair:

FX212E5919000009 # config system virtual-wire-pair

FX212E5919000009 (virtual-wire-pair) # set lte1-mapping lan

FX212E5919000009 (virtual-wire-pair)# end