Objective
Synchronize Cisco IOS device system clocks with an external Network Time Protocol (NTP) server and configure centralized log forwarding to a remote Syslog server with custom logging trap severity levels.
Lab Topology
Task 1 - Configure NTP Client Synchronization
Sync R1's clock with the NTP Server at IP address 192.168.1.100.
R1(config)# ntp server 192.168.1.100
Task 2 - Configure Syslog Centralized Logging
Forward all logs on R1 to the Syslog Server at IP address 192.168.1.150. Set the severity filter to level 5 (Notifications) and above.
R1(config)# logging host 192.168.1.150 R1(config)# logging trap notifications
Task 3 - Configure High-Precision Timestamps
Configure log messages to display high-precision datetime stamps with millisecond details.
R1(config)# service timestamps log datetime msec
Task 4 - Verification
Check NTP synchronization status and review the system clock settings.
R1# show ntp status Clock is synchronized, stratum 3, reference is 192.168.1.100 nominal frequency is 250.0000 Hz, actual is 250.0000 Hz, precision is 2**18 reference time is E23A1B2C.4D03F1E2 (18:15:30.450 UTC Sat May 23 2026) clock offset is 0.0000 msec, root delay is 4.25 msec root dispersion is 1.15 msec, peer dispersion is 0.12 msec R1# show ntp associations address ref clock st when poll reach delay offset disp *~192.168.1.100 127.127.1.1 2 15 64 377 4.2 0.00 0.1 * master (synced), # master (unsynced), + selected, - candidate, ~ configured