With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccsNetServerPortNotifInfo
Cisco Content Service Net Server Port Notification Info
1.3.6.1.4.1.9.9.597.1.4.7
This object specifies the port number of the network server.
Back to CISCO-CONTENT-SERVICES-MIB MIB page.
IPHost Network monitor allows you to monitor ccsNetServerPortNotifInfo on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.