The standard SNMP trap port 162 is not accessible for in for Image Added in for instance in Linux/Unix environment. Make sure to solve this issue. You can either do:
Setup port forwarding from 162 to a port that that Image Addedcan access using iptables.
Change the privileges for port 162, so non root can access it.
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Example - How to setup UDP port forwarding to forward all UDP datagrams from port 162 to port 5678