
DES-7200 CLI Reference Guide
Chapter 27 NTP Configuration Commands
27-3
Usage
guidelines
Use this command to configure the access control priority of the ntp
service. NTP services access control function provides a minimal
security measures (more secure way is to use the NTP authentication
mechanism).
When an access request arrives, NTP service matches the rules in
accordance with the sequence from the smallest to the largest to
access restriction, and the first matched rule shall prevail. The
matching order is peer, serve, serve-only, query-only.
Caution:
Control query function is not supported in the current system.
Although it matches with the order in accordance with the above
rules, the related requests about the control and query are not
supported.
If you do not configure any access control rules, then all accesses are
allowed. However, once the access control rules are configured, only
the rule that allows access can be carried out.
Examples
The following example shows how to allow the peer device in acl1 to
control the query, request for and synchronize the time with the local
device; and limit the peer device in acl2 to request the time for the
local device:
DES-7210(config)#
ntp access-group peer
1
DES-7210(config)# ntp access-group serve-only
2
Related
commands
Command
Description
ip access-list
Create the IP access control list.
27.1.3
ntp authenticate
Use this command to enable NTP authentication globally.
ntp authenticate
no ntp authenticate
Parameter
description
N/A.
Summary of Contents for DES-7200
Page 1: ...DES 7200 CLI Reference Guide Version 10 3 5 ...
Page 40: ......
Page 70: ......
Page 76: ......
Page 80: ......
Page 114: ......
Page 128: ...Chapter 11 Protocol VLAN Configuration Commands DES 7200 CLI Reference Guide 11 4 ...
Page 142: ......
Page 166: ......
Page 180: ......
Page 216: ......
Page 244: ......
Page 306: ......
Page 312: ......
Page 332: ......
Page 352: ......
Page 360: ......
Page 400: ......
Page 474: ......
Page 710: ......
Page 738: ......
Page 776: ......
Page 854: ......
Page 864: ...Chapter 43 Port based Flow Control Configuration Commands DES 7200 CLI Reference Guide 43 10 ...
Page 936: ......
Page 960: ......
Page 970: ......
Page 976: ......
Page 986: ......
Page 990: ......
Page 1100: ......
Page 1108: ......
Page 1118: ......
Page 1126: ......
Page 1134: ......
Page 1172: ......