Technical Documentation

server (NTP)


server address <key key-number> <version value> <prefer>;

Hierarchy Level

[edit system ntp]

Release Information

Statement introduced before JUNOS Release 7.4.

Statement introduced in JUNOS Release 9.0 for EX Series switches.


For NTP, configure the local router or switch to operate in client mode with the remote system at the specified address. In this mode, the local router or switch can be synchronized with the remote system, but the remote system can never be synchronized with the local router or switch.


address—Address of the remote system. You must specify an address, not a hostname.

key key-number—(Optional) Use the specified key number to encrypt authentication fields in all packets sent to the specified address.

Range: Any unsigned 32-bit integer

prefer—(Optional) Mark the remote system as preferred host, which means that if all other things are equal, this remote system is chosen for synchronization among a set of correctly operating systems.

version value—(Optional) Specify the version number to be used in outgoing NTP packets.

Range: 1 through 4
Default: 4

Required Privilege Level

system—To view this statement in the configuration.

system-control—To add this statement to the configuration.

Published: 2010-04-26