configure ntp restrict-list
Description
Restricts a host or block of client IP addresses from getting NTP service. When NTP is enabled over a VLAN, an NTP server is configured, or a broadcast NTP server is in a VLAN, the VLAN's IP block or NTP server's IP address is automatically added into the system with a permit action.
Syntax Description
| add | Restricts a client from getting NTP service. |
| delete | Removes a client from the restrict list. |
| network | Specifies a host or block of IP addresses. |
| mask | Specifies the subnet mask of the network. |
| permit | Specifies that a particular block of client IP addresses is permitted to get NTP service. |
| deny | Specifies that a particular block of client IP addresses is denied NTP service. |
| vr | Specifies VRs for NTP service. |
| vr_name | Specifies the VR name for allowing/denying NTP service. If no VR name is specified, the current command context is used. |
Default
All addresses are denied by default.
If no VR name is specified, the current command context is used.
Usage Guidelines
N/A.
Example
The following command restricts a block of client IP addresses from getting NTP service:
configure ntp restrict-list add 132.25.82.3 deny
History
This command was first available in ExtremeXOS 12.7.
The vr keyword was added in ExtremeXOS 22.2.
Platform Availability
This command is available on ExtremeSwitching 5320, 5420, 5520, and 5720 series switches.