Enabling Ntp Authentication - Huawei AR150/200 Series Configuration Manual

Huawei AR150&200 Series Enterprise Routers
Configuration Guide - Network Management
Step 2 Run:
ntp-service access { peer | query | server | synchronization } acl-number
Access authority for the NTP service on the local router is configured.
You can configure the ntp-service access command depending on the actual situations.
Table 5-1
Table 5-1 Description of the NTP access authorities
NTP Operation Mode
Unicast NTP Client/Server
mode
Unicast NTP Client/Server
mode
NTP peer mode
NTP peer mode
NTP multicast mode
NTP broadcast mode
----End

5.3.3 Enabling NTP Authentication

This part describes how to set NTP Autokey authentication and MD5 authentication on the
device.
Context
NTP client synchronizes to authenticated NTP servers to ensure that time service is reliable
across the network. Authentication prevents the modification of NTP message data from
malicious network attacks.
Procedure
l
Issue 02 (2012-03-30)
shows the detailed NTP access authorities.
Configuring NTP MD5 authentication
NOTE
l Configure the same authentication key on the server and client and affirm that the key is reliable;
otherwise, NTP authentication fails.
l Enable NTP authentication before performing actual authentication.
1. Run:
system-view
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Limited NTP Query
Synchronizing the client with
the server
Clock synchronization
request from the client
Clock synchronization with
each other
Clock synchronization
request from the active end
Synchronizing the client with
the server
Synchronizing the client with
the server
5 NTP Configuration
Supported Devices
Client
Server
Symmetric active end
Symmetric passive end
NTP multicast client
NTP broadcast client
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