R3#sh run | i ntp
ntp authentication-key 1 md5 062B161545430C 7
ntp server 180.40.7.98 key 1
R3#


R4#sh run | i ntp
ntp authentication-key 1 md5 112400311E1F0E 7
ntp clock-period 17179870
ntp server 192.10.32.254
R4#