We are using an AirLink RV50 in our redundant SCADA system to send alarm notifications, and acknowledge alarms via SMS.
Following the setup guide for the RV50, we need to enter the “Local Host IP” under the Local Host Interface Configuration. Everything is working well as long as our Master Gateway with the given IP address is active Gateway. We can receive alarm notifications and we can acknowledge the alarms by replying the sms with a numeric code.
But in case the Master Gateway is failing, and our Backup Gateway (with a different IP) becomes the active Gateway, we are not able to acknowledge the alarms via SMS anymore because we have entered the Master Gateway IP address in the “Local Host IP” field of the RV50 SMS setup (highlighted in green in the below figure).
Does anyone know how to make the RV50 send the acknowledge sms to the Backup Gateway in case the RV50 has lost connection with the Master Gateway? Do we need to setup some sort of port forwarding? Or are there some entry field in the RV50 where we can enter our Backup Gateway IP address in case of a failover?