Hello:
I’ve just received a new gateway of manufacturer Laird, model Sentrius RG1xx.
I would like to connect the gateway with LoraServer. The web page specific that it should be configurated in MQTT Forward, but this option does not appear.
my question is:
Is this gateway supported by LoRaServer?
best regard.
You might need to update your firmware to the latest version, it comes with LoRa Gateway Bridge pre-installed (an configurable through the web-interface), meaning it is really easy to set this up with LoRa Server.
See also: https://docs.loraserver.io/lora-gateway-bridge/install/gateway/laird/
the firmware is 93.7.1.13, but the gateway does not have MQTT Forwarder option.
And 93.7.2.9 is required 
So you must upgrade before this feature becomes available. Please see the documentation page I mentioned.