Hi,
Kindly refer to the following explanation:
1. ntp-service access server 2000
Configure the command on the server, the clients with IP addresses in the ACL can synchronize time with the server.
Configure the command on the client, the client does not synchronize the time with the server.
2. ntp-service access peer 2000
Configure the command on the server, the clients with IP addresses in the ACL can synchronize time with the server.
Configure the command on the client, the client can synchronize time with the servers whose IP addresses are in the ACL.
3. ntp-service access synchronization 2000
Configure the command on the server, the clients with IP addresses in the ACL can synchronize the time with the server.
Configure the command on the client, the client can synchronize time with the servers whose IP addresses are in the ACL.
4. ntp-service access query 2000
For security purposes, the query function is not implemented. If the ACL is configured, the time cannot be synchronized.