With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cscRdrDestPort
csc Rdr Dest Port
1.3.6.1.4.1.9.9.637.1.2.1.4
This object indicates the port on which the RDR destination server listens.
Back to CISCO-SERVICE-CONTROL-RDR-MIB MIB page.
IPHost Network monitor allows you to monitor cscRdrDestPort on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.