Setting Ntp Access Authorities - Huawei S9300 Configuration Manual

S9300&S9300E Terabit Routing Switch
Configuration Guide - Network Management
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Data Preparation
To configure NTP security mechanisms, you need the following data.
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4.4.2 Setting NTP Access Authorities

When receiving an access request packet, the NTP server matches the request packet with the
access authority in descending order (from peer, server, synchronization to query). The first
matched authority takes effect.
Context
Do as follows on the switch.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
ntp-service access { peer | query | server | synchronization } acl-number
Access authority for the NTP service on the local switch is configured.
Issue 01 (2012-03-15)
Configuring the link layer protocol on the interface
Configuring the network layer address and routing protocol to make the server and client
reachable
Configuring ACL rules if the access authority is configured
Data
ACL rules
Shared key and its ID that are used in NTP authentication
NTP primary clock and its stratum
Interfaces that send and receive NTP packets
NTP version
Preparing the following data according to the NTP operation mode:
l Server/client mode: IP address of the server and the VPN instance the server
belongs to
l Peer mode: IP address of the symmetric passive end and the VPN instance it
belongs to
l Broadcast mode: interfaces to send and receive broadcast NTP packets and the
maximum number of the sessions set up dynamically on the client
l Multicast mode: IP address of the multicast group and the TTL values of the
multicast packets
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