With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cntpPeersUpdateTimeRev1
cntp Peers Update Time Rev1
1.3.6.1.4.1.9.9.168.1.2.1.1.28
The local time, when the most recent NTP message was received from the peer that was used to calculate the skew dispersion. This represents only the 32-bit integer part of the NTPTimestamp.
Back to CISCO-NTP-MIB MIB page.
IPHost Network monitor allows you to monitor cntpPeersUpdateTimeRev1 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.
