Hello,
Unfortunately, the data you want to receive vis SNMP is not available. As an alternative, you can configure the router to send an SMS or email on a failover event. For more details refer here: https://wiki.teltonika-networks.com/view/RUT955_Events_Reporting
Regarding, SNMP traps, it is a known issue, which will be solved, related to a missing dependency, when compiling final firmware, which leads to SNMP traps package simply not being installed. To solve this, you need to upload SNMP package manually via Services > Package Manager > Upload page, the package can be downloaded from here.
Otherwise, you need to access the router via CLI (In the web UI navigate to System -> CLI) or SSH (you can use PuTTy) client and execute the following commands:
- opkg update
- opkg install snmptrap
Best regards,
Žygimantas