Time Protocol Using the diagram below configure Network Time Protocol. Send_ntp will provide time to Receive_ntp. Use your current time and location for your clock settings.
Solution: Set the appropriate time and time zone for the router that will act as your time server. Also set the time server using the "ntp master" command. At the appropriate interface broadcast the NTP protocol. Send_ntp#clock set 07:30:00 20 jan ... 1999 Send_ntp#config t Enter configuration commands, one per line. ... End with CNTL/Z. Send_ntp(config)#clock ? summer-time Configure summer (daylight ... savings) time timezone Configure time zone Send_ntp(config)#clock timezone est 5 Send_ntp(config)#clock summer-time ? WORD name of time zone in summer Send_ntp(config)#clock summer-time est ? date Configure absolute summer time recurring Configure recurring summer time Send_ntp(config)#clock summer-time est ... recurring Send_ntp(config)#int s0 Send_ntp(config-if)#ntp broadcast Send_ntp(config)#ntp master Send_ntp#sh run Building configuration... %SYS-5-CONFIG_I: Configured from console by ... console Current configuration: ! !
Last configuration change at 07:40:38 est ... Wed Jan 20 1999 ! version 11.3 no service password-encryption ! hostname Send_ntp ! ! clock timezone est 5 clock summer-time est recurring ! interface Ethernet0 ip address 172.16.2.32 255.255.255.0 ! interface Serial0 ip address 172.16.4.5 255.255.255.252 no ip mroute-cache ntp broadcast no fair-queue ! interface Serial1 no ip address shutdown ! router rip network 172.16.0.0 ! ip classless line con 0 line 1 8 line aux 0 line vty 0 4 ! ntp master end To configure the receiving router, just point it to the time server. Before router is configured to receive time from NTP server: receive_ntp#sh clock *00:05:04.359 UTC Mon Mar 1 1993 receive_ntp#config t Enter configuration commands, one per line. ... End with CNTL/Z. receive_ntp(config)#ntp server ... 172.16.4.5 receive_ntp(config)#^Z %SYS-5-CONFIG_I: Configured from console by ... console receive_ntp#sh clock .02:31:46.866 UTC Wed Jan 20 1999 receive_ntp#sh run Building configuration... Current configuration: ! version 11.3 no service password-encryption! hostname receive_ntp interface Serial0 ip address 172.16.4.6 255.255.255.252 no ip mroute-cache clockrate 56000 ! interface Serial1 no ip address shutdown ! interface Serial2 no ip address shutdown ! interface Serial3 no ip address shutdown ! interface TokenRing0 no ip address shutdown ! interface BRI0 no ip address shutdown ! ip classless line con 0 line aux 0 line vty 0 4 login ! ntp server 172.16.4.5 end