We have a pair of Sonicwall nSA4650's running in Active/Standby and I have both monitored via their management addresses which works fine. I can also pull SNMP information from the Gateway address if needed. What I am thinking is if I obtain the Serial number of the firewall via SNMP from the Gateway address that will tell me which one is currently active (as it will be running the query against the currently active firewall) but I'm not sure how I can process that information so I can show on a map which firewall is currently the Active unit. I could just display the serial number on the map but then all the staff would need to know which serial number belonged to which unit. I don't know if I can script something along the lines of 'If serial = 12345 then display "Site 1" or if serial = 67890 then display "site 2" based on what get's pulled via SNMP.
Open to suggestions :)
It's not a massive issue it's just a nice to have.