With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
clmgmtLicenseEndDate
clmgmt License End Date
1.3.6.1.4.1.9.9.543.1.2.3.1.16
This object indicates the end date for a subscription license. This object is applicable only when clmgmtLicenseType is paidSubscription(5), evaluationSubscription(6) or extensionSubscription (7). The object will contain an octet string of length 0 when it is not applicable.
Back to CISCO-LICENSE-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor clmgmtLicenseEndDate on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.