With IPHost Network Monitor you can run simple snmp requests against a NETGEAR device in your network.
agentInventoryStackMaxUnitNumber
agent Inventory Stack Max Unit Number
1.3.6.1.4.1.4526.10.13.1.3
Indicates the maximum allowed Unit Number configurable on the stack.
Back to NETGEAR-INVENTORY-MIB MIB page.
IPHost Network monitor allows you to monitor agentInventoryStackMaxUnitNumber on NETGEAR device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring NETGEAR cable modems right now.