With IPHost Network Monitor you can run simple snmp requests against a NETGEAR device in your network.
agentSwitchArpAge
agent Switch Arp Age
1.3.6.1.4.1.4526.10.2.1.10.1.1
This defines the time (in seconds) since the ARP entry was last refreshed. This value is 0 for ARP entries of type local(1) or static(3), since these entries are not subject to aging.
Back to NETGEAR-ROUTING-MIB MIB page.
IPHost Network monitor allows you to monitor agentSwitchArpAge on NETGEAR device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring NETGEAR switches right now.
