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Command line - ADTRAN NetVanta example

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Log into the device with Telnet or SSH. Enter privileged mode by typing enable and entering your enable password.

Enable DNS lookup

Make sure DNS lookups are enabled on your device so it can be synced to an NTP server. Run the following command. Replace 8.8.8.8 8.8.4.4 with the DNS servers you’d like to use.

domain-lookup
name-server 8.8.8.8 8.8.4.4

Set the clock, time zone, and NTP server

There are four locations shown as examples. To see the available global zones from NTP Pool, refer to https://www.ntppool.org/zone/@.

For each example, replace clock set 09:00:00 1 Jan 2018 with the current time and date at the time the setting was applied. If you use a zone not shown below, also update clock timezone EST -5 0 and ntp server north-america.pool.ntp.org, for example.

North America (specifically Eastern Time, UTC-5):

configure terminal
clock set 09:00:00 1 Jan 2018
clock timezone EST -5 0
ntp server north-america.pool.ntp.org
exit

Europe (specifically Central European Time, UTC+1):

configure terminal
clock set 09:00:00 1 Jan 2018
clock timezone CET +1 0
ntp server europe.pool.ntp.org
exit

Brazil (specifically Brasília, UTC-3):

configure terminal
clock set 09:00:00 1 Jan 2018
clock timezone BRT -3 0
ntp server br.pool.ntp.org
exit

Australia (specifically Sydney, UTC+11):

configure terminal
 clock set 09:00:00 1 Jan 2018
 clock timezone AEST +11 0
 ntp server au.pool.ntp.org
 exit

Confirm the NTP settings

To make sure the settings took effect, run the following command: show clock detail

Synchronize with an NTP server

To make sure the unit has synchronized with an NTP server, run the following command: show ntp status

Exit configuration mode and save changes

If you see Clock is synchronized, you're good to go. Lock in your changes so they'll survive a reboot of the router.

# Save active configuration

end
write memory

# Save the current running configuration to the startup configuration
file
 
copy running-config startup-config

 

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