Connectivity Guide

● The number must match in the ntp trusted-key command.
● The key is an encrypted string.
3. Define a trusted key in CONFIGURATION mode, from 1 to 4294967295. This number must match the number in the ntp
trusted-key command.
ntp trusted-key number
4. Configure an NTP server in CONFIGURATION mode.
ntp server {hostname | ipv4-address | ipv6-address} [key keyid] [prefer]
● hostname — Enter the keyword to see the IP address or host name of the remote device.
● ipv4-address — Enter an IPv4 address in A.B.C.D format.
● ipv6-address — Enter an IPv6 address in nnnn:nnnn:nnnn:nnnn:nnnn:nnnn:nnnn:nnnn format (elision of zeros is
supported).
● key keyid — Enter a text string as the key exchanged between the NTP server and the client.
● prefer — Enter the keyword to set this NTP server as the preferred server.
5. Configure the NTP master and enter the stratum number that identifies the NTP server hierarchy in CONFIGURATION
mode, from 2 to 10, default 8.
ntp master <2–10>
Configure NTP
OS10(config)# ntp authenticate
OS10(config)# ntp trusted-key 345
OS10(config)# ntp authentication-key 345 mdf 0 5A60910FED211F02
OS10(config)# ntp server 1.1.1.1 key 345
OS10(config)# ntp master 7
View NTP configuration
OS10(config)# do show running-configuration
!
ntp authenticate
ntp authentication-key 345 mdf 0 5A60910FED211F02
ntp server 1.1.1.1 key 345
ntp trusted-key 345
ntp master 7
...
Sample NTP configuration
Following example shows an NTP master(11.0.0.2), server(10.0.0.1), and client(10.0.0.2) connected through a non-default VRF
instance (VRF red). OS10 System acts as NTP server to synchronize its clock with the NTP master available in the non-default
VRF instance red and provides time to NTP clients in that VRF instance.
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System management