I have a program written by SnmpSource called MibViewer (for testing purposes, it has a builtin 5 day trial). It can see the traps that are sent from my NSS4000 when I do Admin->SNMP Traps->Test All.
This same program cannot request the current status of any SNMP items. I have tried using SNMP Get Next, SNMP Walk, and SNMP Get Bulk, and none of them return anything whatsoever.
So, the question is: How do I query the SNMP values of an NSS4000? I'm guessing that there are certain security parameters that I need to use to talk to it, or that the device is not capable.