ntp config

Router 1 Configuration
Router>enable
Router#configure terminal
Router(config)#hostname R1
R1(config)#no ip domain-lookup
R1(config)#banner motd #Unauthorized access is prohibited!#
R1(config)#service password-en
Router 1 - Intrinsic Configuration
R1(config)#enable secret class
R1(config)#line con 0
R1(config-line)#password cisco
R1(config-line)#login
R1(config-line)#logging synchronous
R1(config-line)#exit
R1(config)#line vty 0 4
R1(config-line)#password cisco
R1(config-line)#login
R1(config-line)#end
R1#configure terminal
R1(config)#int S0/0/0
R1(config-if)#ip add 10.1.1.1 255.255.255.252
R1(config-if)#clock rate 128000
R1(config-if)#no shutdown
R1(config-if)#end
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Router 2 Configuration
Router2>enable
Router2#configure terminal
Router2(config)#hostname R2
R2(config)#no ip domain-lookup
R2(config)#banner motd #Unauthorized access prohibited!#
R2(config)#service password-encryption
R2(config)#line con 0
R2(config-line)#password cisco
R2(config-line)#login
R2(config-line)#logging synchronous
R2(config-line)#exit
R2(config)#line vty 0 4
R2(config-line)#password cisco
R2(config-line)#login
R2(config-line)#end
R2#configure terminal
R2(config)#int S0/0/0
R2(config-if)#ip add 10.1.1.2 255.255.255.252
R2(config-if)#no shutdown
R2(config-if)#end
R2(config)#enable secret class
R2(config)#int g0/0
R2(config-if)#ip add 172.16.2.1 255.255.255.0
R2(config-if)#no shut

Clock Configuration
R1#clock set 10:43:00 19 feb 2024
R1#config t
R1(config)#clock timezone SGT 2
R1(config)#exit
R1#sh clock detail
12:43:45.278 SGT Mon Feb 19 2024
Time source is user configuration
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NTP Configuration
R1(config)#ntp ?
  authenticate        Authenticate time sources
  authentication-key  Authentication key for trusted time sources
  master              Act as NTP master clock
  server              Configure NTP server
  trusted-key         Key numbers for trusted time sources
  update-calendar     Configure NTP to update the calendar.
R1(config)#ntp master 5
R2(config)#ntp server 10.1.1.1
R2(config)#ntp update-calendar
R2#sh ntp ?
  > associations  NTP associations
  > status        NTP status
R2#sh ntp associations
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SysLog Configuration
R2(config)#service timestamps ?
R2(config)#service timestamps log ?
R2(config)#service timestamps log datetime msec
R2#
*Mar 01, 00:02:43.022: %SYS-5-CONFIG_I: Configured from console by console
R2#sh run | include timestamp
service timestamps log datetime msec
no service timestamps debug datetime msec
R2#config t

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Additional
R2(config)#logging 172.16.2.3
R2(config)#logging trap debugging
R2(config)#int lo 0
Note : These commands may be unavailable in Packet Tracer. Opt for a physical device that supports the latest definitions of Cisco IOS CLI interface.