Before we get started, I first want to show that we currently have an unsynchronized clock:
R1# show clock detail *00:01:19.099 UTC Fri Mar 1 2002 No time source R1#
Configuring a Cisco router to act as an NTP client is extremely simple. We’ll use the “ntp server” command, followed by the IP address of the NTP server:
R1# configure terminal Enter configuration commands, one per line. End with CNTL/Z. R1(config)# ntp server nist.netservicesgroup.com Translating "nist.netservicesgroup.com"...domain server (192.168.1.12) [OK] R1(config)#