3com 10014302 Manual De Usuario

ntp-service access { query | synchronization | server | peer } acl-number

 

undo ntp-service access { query | synchronization | server | peer }

System view

 

query: Assigns the controlled query right.

 

synchronization: Allows only the server to access.

 

server: Allows the server and query to access.

 

peer: Full access right.

acl-number: IP ACL number. The basic ACL can be numbered in the range of 1 to 99.

 

Using the ntp-service access command, you can control the access to the service 

provided by the local device. Using the undo ntp-service access command, you can 

remove the configured access rights.

 

By default, there is no access restriction. 

This command can be used to control the access to the NTP services of the local 

device. It just provides a minimum security protection, however. To obtain much 

reliable security, you must configure authentication. Whenever receiving an access 

request, the router will perform the match operation to find out the access right 

assigned to the requestor in the descending order of access rights, i.e., peer, server, 

synchronization, and query. The match found first will be the service access right 

assigned to the requestor. 

 

Assign the peer access right to the peers in ACL 76.

   

[3Com] ntp-service access peer 76 

Assign the synchronization access right to the peers in ACL 28.

 

[3Com] ntp-service access synchronization 28 

3Com Router Command Reference Guide Addendum for V1.2

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