WESM zl Management and Configuration Guide WT.01.28 and greater

2-145
Configuring the ProCurve Wireless Edge Services zl Module
Enabling Secure Network Time Protocol (NTP)
Applying ACLs to NTP Services
For additional security, you can set access controls on the NTP messages that your
Wireless Edge Services zl Module receives. The module only accepts a particular
type of message if the ACL applied to that type permits it.
You will first need to configure the ACLs for NTP resource access before completing
this task. (See Chapter 7: “Access Control Lists (ACLs).” Use standard IP ACLs.
Each ACL should permit the IP addresses of devices that are allowed a particular
type of NTP access. For ACLs used with Secure NTP, the ACL IDs must be numeric
(not strings).
To apply the access controls, move to the Special Features > Secure NTP screen.
Then, enter the index numbers for the appropriate ACLs in the ACL Ids fields in the
Access Group section of the screen.
Figure 2-90. Applying ACLs to NTP Services