Cisco Catalyst 9500 User Manual

PurposeCommand or Action
Use the no form of this command to disable the
interface from receiving NTP broadcast packets.
Device(config-if)# ntp broadcast client
Returns to privileged EXEC mode.exit
Example:
Step 6
Device(config-if)# exit
(Optional) Change the estimated round-trip
delay between the device and the NTP broadcast
server
[no] ntp broadcastdelay microseconds
Example:
Device(config)# ntp broadcastdelay 100
Step 7
The default is 3000 microseconds. The range
is from 1 to 999999.
Use the no form of this command to disable the
interface from receiving NTP broadcast packets.
Returns to privileged EXEC mode.end
Example:
Step 8
Device(config)# end
Configuring NTP Access Restrictions
You can control NTP access on two levels as described in these sections:
Creating an Access Group and Assigning a Basic IP Access List
To create an access group and assign a basic IP access list, perform this procedure:
Procedure
PurposeCommand or Action
Enables privileged EXEC mode.enable
Step 1
Example:
Enter your password if prompted.
Device> enable
Enters global configuration mode.configure terminal
Example:
Step 2
Device# configure terminal
Create an access group, and apply a basic IP
access list..
[no] ntp access-group {query-only |
serve-only | serve | peer} access-list-number
Step 3
System Management Configuration Guide, Cisco IOS XE Amsterdam 17.2.x (Catalyst 9500 Switches)
19
Administering the Device
Configuring NTP Access Restrictions

Cisco Catalyst 9500 Specifications

General

Brand	Cisco
Model	Catalyst 9500
Category	Switch
Language	English