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Configure NTP IPV6 Server and Client

Network Requirements

  • Device1 is the NTP server and Device2 is the NTP client.
  • Device1 and Device2 are interconnected via their interfaces VLAN2 and the route is reachable.
  • The NTP server is the clock source and the client gets the clock from the server.

Network Topology

Networking of configuring the NTP IPV6 server and client

Figure 4-6 Networking of configuring the NTP IPV6 server and client

Configuration Steps

Step 1: Configure the IPv6 address of the interface. (Omitted)

Step 2: Configure the NTP server Device1.

#Enable NTP IPv6 of device1, configure the time zone as Beijing time zone, local clock as reference clock, and the number of clock layers as 3.

Device1#configure terminal
Device1(config)#ntp enable ipv6
Device1(config)#clock timezone BINJING 8
Device1(config)#ntp master 3
Device1(config)#exit

Step 3: Configure the NTP client Device2.

#Enable NTP IPv6 of Device2, and configure the time zone as Beijing time zone.

Device2#configure terminal
Device2(config)#ntp enable ipv6
Device2(config)#clock timezone BINJING 8

#Specify the NTP server Device1, and IPv6 address as 10:1::121.

Device2(config)#ntp server ipv6 10:1::121
Device2(config)#exit

Step 4: Check the result.

#Execute the show ntp status command on the client Device2, and view the clock synchronization status, indicating that the client and NTP server Device1 are synchronized and the clock layers is 4, larger than Device1.

Device2#show ntp status
Current NTP status information
 NTP ipv4 is disabled
 NTP ipv6 is enabled
Clock is synchronized, stratum 4, reference is 10:1::121

reference time is D442EB0E.432F29BD (01:49:02.262 Tue Nov 06 2012)

#On the client Device2, execute the show clock command to view the device clock.

Device2#show clock

BEIJING(UTC+08:00) TUE NOV 06 09:49:30 2012