RUT900 NTP: Difference between revisions

Latest revision as of 12:34, 19 July 2021

Main Page > EOL Products > RUT900 > RUT900 Manual > RUT900 WebUI > RUT900 Services section > RUT900 NTP

The information in this page is updated in accordance with firmware version .
Note: click here for the old style WebUI (FW version RUT9XX_R_00.06.09.5 and earlier) user manual page.

Summary

Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks. This chapter is an overview of the NTP section for RUT900 devices.

General

The Time Synchronization section lets you select time zone and synchronize the time.

The figure below is an example of the Time Synchronization section and the table below provides information about the fields contained in that section:

Field	Value	Description
Current system time	time; default: none	Current local time of the device.
Sync with browser	-(interactive button)	Click to synchronize device time and time zone to browsers, if your device time or time zone is not correct.
Time zone	time zone; default: UTC	The device will sync time in accordance with the selected time zone.

NTP

This section is used to configure NTP client, server and time servers.

Time Synchronization

Field	Value	Description
Enable NTP Client	off \| on; default: on	Turns NTP on or off.
Save time to flash	off \| on; default: off	Saves last synchronized time to flash memory.
Force Servers	off \| on; default: off	Forces unreliable NTP servers.
Update interval (in seconds)	integer; default: 86400	How often the device will update the time.
Offset frequency	integer; default: 0	Adjusts the minor drift of the clock so that it will run more accurately.
Count of time synchronizations	integer; default: none	The amount of times the device will perform time synchronizations. Leave empty in order to set to infinite.
Operator Station Synchronization	off \| on; default: off	Synchronizes time with mobile operator's base station.
Timezone Synchronization	off \| on; default: off	Sync time data with mobile operator.
Hostname	ip \| url; default: 0.openwrt.pool.ntp.org	NTP servers that this device uses to sync time.

NTP Server

The device can also act as an NTP Server, providing clock synchronization to other devices in the network. From this section you can turn this feature on or off:

NTPD

The NTPD program is an operating system daemon that synchronizes the system clock to remote NTP time servers or local reference clocks. NTPD includes the ability to use this to keep your clock in sync and will run more accurately than a clock on a device not running NTPD. NTPD will also use several servers to improve accuracy. It is a complete implementation of NTP version 4 defined by RFC-5905, but also retains compatible with version 3 defined by RFC-1305 and versions 1 and 2, defined by RFC-1059 and RFC-1119, respectively.

Field	Value	Description
Enable NTPD	off \| on; default: off	Turns NTPD on or off.
Enable NTP config from file	off \| on; default: off	Run NTPD with uploaded configuration file.
NTP configuration file	.conf file; default: none	Upload a custom configuration file.
Server	ip \| url; default: 0.openwrt.pool.ntp.org	NTP servers that this device uses to sync time.
Enable Server	off \| on; default: off	Enables NTPD server to make the router act as an NTP server so that it can provide time synchronization services for other network devices.

@@ Line 1: / Line 1: @@
-==Summary==
+{{Template: Networking_rutos_manual_ntp
+<!------------------------DEVICE----------------------->
-'''Network Time Protocol (NTP)''' is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks. This chapter is an overview of the NTP service section of [[Network products|RUTxxx routers]].
+| name    = RUT900
+| series  = RUT9
-==General==
+<!----------------------SEPARATORS--------------------->
+| gps    = 0
-The '''Time Synchronization''' section is used to configure general router time settings, like selecting the local time zone, setting a time update interval, synchronizing the time, etc.
+| mobile = 1
+}}
-[[File:Services ntp general v2.png]]
-{| class="wikitable"
-|+
-! style="width: 250px; border: 1px solid white; border-bottom: 2px solid #0054A6; background: white; color: #0054A6; text-align: left;" | FIELD NAME
-! style="width: 250px; border: 1px solid white; border-bottom: 2px solid #0054A6; background: white; color: #0054A6; text-align: left;" | VALUE
-! style="width: 579px; border: 1px solid white; border-bottom: 2px solid #0054A6; background: white; color: #0054A6; text-align: left;" | DESCRIPTION
-|-
-! style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Current system time
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | time; Default: '''current time'''
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Current local time of the router
-|-
-! style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Time zone
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | time zone; Default: '''UTC'''
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Time zone of the country where the router is located
-|-
-! style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Enable NTP
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | yes {{!}} no; Default: '''no'''
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | SO/IEC 3166 alpha2 country codes as defined in ISO 3166-1 standard
-|-
-! style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Force servers
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | yes {{!}} no; Default: '''yes'''
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Forces unreliable NTP servers
-|-
-! style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Update interval (in seconds)
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | integer; Default: '''3660'''
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | How often the router updates systems time
-|-
-! style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Save time to flash
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | yes {{!}} no; Default: '''yes'''
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Saves last synchronized time to flash memory
-|-
-! style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Count of time synchronizations
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | integer; Default: " "
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Total amount of times that router will do the synchronization.
-'''NOTE:''' If left blank - the count will be infinite
-|-
-! style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | GPS synchronization
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | yes {{!}} no; Default: '''no'''
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Enables periodic time synchronization of the system using the GPS module (does not require internet connection)
-|-
-! style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Offset frequency
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | integer; Default: '''0'''
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Adjusts the minor drift of the clock so that it will run more accurately
-|-
-! style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Button: Sync with GPS
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | -
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Synchronizes the router's time with your GPS time
-|-
-! style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Button: Sync with browser
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | -
-| style="border: 1px solid white; border-bottom: 2px solid #E8E8E8; text-align: left; vertical-align: top; background: white;" | Synchronizes the router's time with your browser's time
-|-
-|}
-==NTP Server==
-The router can also act as an '''NTP Server''', providing clock synchronization to other devices in the network. From this section you can turn this feature ON or OFF.
-[[File:Services ntp general ntp server.png]]
-==Time Servers==
-The '''Time Servers''' section displays the time servers that the router uses. You are provided with 4 default time servers (as seen in the example below), but you can also add custom time servers by clicking the "Add" button or you can edit the given time servers.
-[[File:Services ntp time servers v2.png]]