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SecurityPlus
Explorer III
April 25, 2019
Solved

Backup WAN Connnection - NETGEAR 4G LTE Modem

  • April 25, 2019
  • 1 reply
  • 6943 views

Has anyone used a Netgear 4G LTE Modem (LB2120) as a backup WAN connection on a FortiGate. The primary WAN 1 connection will be a fiber connection. Would like a fail-over WAN 2 connection using SD-WAN in the event the fiber connection fails. Are there other alternatives to this that should instead be considered?

    Best answer by Toshi_Esumi

    As long as it's connected over ethernet, the brand/internet media type shouldn't be a matter. It could be in router mode to have another subnet between the modem/router and your FGT or in bridge mode that the modem provides just media conversion. Either way it's just another internet connection.

    1 reply

    Toshi_Esumi
    SuperUser
    Toshi_EsumiAnswer
    SuperUser
    April 25, 2019

    As long as it's connected over ethernet, the brand/internet media type shouldn't be a matter. It could be in router mode to have another subnet between the modem/router and your FGT or in bridge mode that the modem provides just media conversion. Either way it's just another internet connection.

    SecurityPlus
    SecurityPlusAuthor
    Explorer III
    April 25, 2019

    Thanks for the helpful feedback!

    SecurityPlus
    SecurityPlusAuthor
    Explorer III
    May 15, 2019
    We think that we need to set this up as a redundant internet basic failover instead of using SD-WAN. https://cookbook.fortinet...net-basic-failover-56/ SD-WAN looks as though it was consuming some bandwidth on the cellular modem even though the primary fiber connection had not failed. The cellular does not have a static address. The Netgear modem offers a bridge mode or a router mode. Which mode should be used? From the perspective of the failover / failback it seems that the Netgear needs to do routing so that we can run it using a consistent gateway address of 192.168.5.1.
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