Add an NTP Server
Add a remote NTP server to the configuration by specifying its IP address. NTP adds this IP address to a list of servers, which the local NTP client uses to query remote time servers for time information. The list of qualified servers called to is a peer list.
About this task
For NTPv4, this procedure adds the NTP server information to the switch that is acting as an NTP client. You can configure a maximum of 10 IPv4 NTP servers and 10 IPv6 NTP servers.
Procedure
Example
Switch:>enable Switch:1configure terminal Switch:1(config)#ntp server 192.0.2.187
Switch:1(config)#show ntp server
==========================================================================================
NTP Server
==========================================================================================
Server Ip Enabled Auth Key Id Auth Type
------------------------------------------------------------------------------------------
192.0.2.187 true false 0 N/A
Variable Definitions
The following table defines parameters for the ntp server command.
|
Variable |
Value |
|---|---|
|
auth-enable |
Activates MD5 or SHA1 authentication on this NTP server. Without this option, the NTP server will not have any authentication by default. |
|
authentication-key <0-65534> |
Specifies the key ID value used to generate the MD5 or SHA1 digest for the NTP server. The default authentication key is 0, which indicates disabled authentication. |
|
enable |
Activates the NTP server. To set this option to the default value, use the default operator with the command. |
|
WORD<0–255> |
Specifies the IPv4 or IPv6 address of the NTP server. |