Configure syslog & NTP (Network Time Protocol) Syslog is used to record and save allthe log files incurred in router and switches. Network Time Protocol (NTP) is a protocol that allows the synchronization of system clocks (from desktops to servers). Used to synchronization clock time of the network Having synchronized clocks is not only convenient but required for many distributed applications. Configure Basic configuration based on below info and routing RIP or OSPF Router0 Router>enable Router#conf t Enter configuration commands, one per line. End with CNTL/Z. Router(config)#int Router(config)#interface gi Router(config)#interface gigabitEthernet 0/0 Router(config-if)#ip add Router(config-if)#ip address 10.1.1.1 255.255.255.0 Router(config-if)#no shu Router(config-if)#no shutdown Router(config-if)# %LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up Router(config-if)#exit Router(config)#interface gigabitEthernet 0/1 Router(config-if)#ip address 192.168.1.1 255.255.255.0 Router(config-if)#no shutdown Router(config-if)# Router(config-if)#exit Router(config)#router eigrp 1 Router(config-router)#network 192.168.1.0 0.0.0.255 Router(config-router)#network 10.1.1.0 0.0.0.255 Router(config-router)# %DUAL-5-NBRCHANGE: IP-EIGRP 1: Neighbor 10.1.1.2 (GigabitEthernet0/0) is up: new adjacency Router(config-router)#exit Router(config)#exit Router# %SYS-5-CONFIG_I: Configured from console by console wr Building configuration... [OK] Router# Router1 Router>enable Router#conf t Enter configuration commands, one per line. End with CNTL/Z. Router(config)#int Router(config)#interface gi Router(config)#interface gigabitEthernet 0/0 Router(config-if)#ip add Router(config-if)#ip address 10.1.1.2 255.255.255.0 Router(config-if)#no shu Router(config-if)#no shutdown Router(config-if)#exit Router(config)#interface gigabitEthernet 0/1 Router(config-if)#ip address 192.168.2.1 255.255.255.0 Router(config-if)#no shutdown Router(config-if)# Router(config-if)#exit Router(config)#router eigrp 1 Router(config-router)#network 192.168.2.0 0.0.0.255 Router(config-router)#network 10.1.1.0 0.0.0.255 Router(config-router)# Router(config)#exit Router# %SYS-5-CONFIG_I: Configured from console by console wr Building configuration... [OK] Router# Test connection and routing Router0 Router>en Router#conf t Enter configuration commands, one per line. End with CNTL/Z. Router(config)#logging on Router(config)#logging 192.168.2.4 Router(config)#logging tr Router(config)#logging trap deb Router(config)#logging trap debugging Router(config)#logging trap debugging ? <cr> Router(config)#logging trap debugging Router(config)#exit Router# %SYS-5-CONFIG_I: Configured from console by console %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.2.4 port 514 started - CLI initiated Router# Router1 Router>en Router#conf t Enter configuration commands, one per line. End with CNTL/Z. Router(config)#log Router(config)#loggin Router(config)#logging on Router(config)#logging 192.168.2.4 Router(config)#logging tr Router(config)#logging trap deb Router(config)#logging trap debugging Router(config)#logging trap debugging Router(config)#exit Router# %SYS-5-CONFIG_I: Configured from console by console %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host 192.168.2.4 port 514 started - CLI initiated Router# Then Go to Syslog Server or open Syslog Server go to service menu click Syslog click on Network Time Protocol (NTP) is a protocol that allows the synchronization of system clocks Lets check first the the routers and ntp server Router0 Router(config)#do show clock detail *1:46:22.211 UTC Mon Mar 1 1993 Time source is hardware calendar Router(config)# Router1 Router(config)#do show clock detail *1:17:53.630 UTC Mon Mar 1 1993 Time source is hardware calendar Router(config)# NTP Server Open NTP Server click the services menuclick NTPthen So clock is not sync Router0 Router(config)# Router(config)#ntp server 192.168.2.3 Router(config)#service ti Router(config)#service timestamps log dat Router(config)#service timestamps log datetime mse Router(config)#service timestamps log datetime msec Router(config)#do sh clock *1:57:26.404 UTC Mon Mar 1 1993 Router(config)# Router(config)# Router1 Router(config)#ntp serv Router(config)#ntp server 192.168.2.3 Router(config)#service ti Router(config)#service timestamps log d Router(config)#service timestamps log datetime ms Router(config)#service timestamps log datetime msec Router(config)# Router(config)#do sh clock *1:33:48.732 UTC Mon Mar 1 1993 Router(config)# It will take some time to synch Click on fast forward time Then again execute command do sh clock The go to NTP server