Enabling Ntp Authentication - Huawei Quidway S2700 Series Configuration Manual

Quidway S2700 Series Ethernet Switches
Configuration Guide - Network Management
NTP Operation Mode
Unicast NTP server/client
mode
NTP peer mode
NTP peer mode
NTP multicast mode
NTP broadcast mode
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4.4.3 Enabling NTP Authentication

This part describes how to set NTP Autokey 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.
Do as follows on the switch.
Procedure
l
Issue 01 (2011-07-15)
Configuring NTP MD5 autentication
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
The system view is displayed.
2. Run:
ntp-service authentication enable
NTP authentication is enabled.
3. Run:
ntp-service authentication-keyid key-id authentication-mode md5 password
The NTP authentication key is configured.
4. Run:
ntp-service reliable authentication-keyid key-id
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Limited NTP Query
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
4 NTP Configuration
Supported Devices
Server
Symmetric active end
Symmetric passive end
NTP multicast client
NTP broadcast client
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