With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rttMonRtpStatsTotalPacketsSDMax
Cisco RTT Monitor Rtp Stats Total Packets SD Max
1.3.6.1.4.1.9.9.42.1.3.6.1.48
Maximum number of packets sent from source to destination
Back to CISCO-RTTMON-RTP-MIB MIB page.
IPHost Network monitor allows you to monitor rttMonRtpStatsTotalPacketsSDMax 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.