With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rttMonRtpStatsPacketLossDSMax
Cisco RTT Monitor Rtp Stats Packet Loss DS Max
1.3.6.1.4.1.9.9.42.1.3.6.1.10
Maximum number of packets lost from destination to source.
Back to CISCO-RTTMON-RTP-MIB MIB page.
IPHost Network monitor allows you to monitor rttMonRtpStatsPacketLossDSMax 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.