With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
proProtoIpDefGwAge
pro Protocol Ip Default Gw Age
1.3.6.1.4.1.1.3.2.1.3
The age of the default gateway for the router.
Back to ibm-ibm2210 MIB page.
IPHost Network monitor allows you to monitor proProtoIpDefGwAge on IBM device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring IBM computers right now.