With IPHost Network Monitor you can run simple snmp requests against a NETGEAR device in your network.
agentSwitchIpInterfaceMtuValue
agent Switch Ip Interface Mtu Value
1.3.6.1.4.1.4526.10.2.2.3.1.7
Configures the MTU value for this interface. If the value returned is 0 this interface is not enabled for routing. It is not valid to set this value to 0 if routing is enabled.
Back to NETGEAR-ROUTING-MIB MIB page.
IPHost Network monitor allows you to monitor agentSwitchIpInterfaceMtuValue 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.