WESM zl Management and Configuration Guide WT.01.28 and greater

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Configuring the ProCurve Wireless Edge Services zl Module
Enabling Secure Network Time Protocol (NTP)
5. In the NTP Version field, use the drop-down menu to select the version of NTP
to use with this configuration.
Although the latest version of the NTP implementation is NTPv4, the official
Internet standard is NTPv3.
6. Select the authentication method:
• No Authentication—No authentication is used.
• AutoKey Authentication—The Wireless Edge Services zl Module and the
neighbor automatically generate the keys that authenticate their communi-
cations, using digital certificates to secure the automatic process.
This option is not available when Broadcast Server is selected as the
neighbor type in step 3.
• Symmetric Key Authentication—The module and the neighbor authenticate
communications with the same shared key.
7. If you selected Symmetric Key Authentication in step 6, in the Key ID field, enter
the symmetric key ID.
The key ID references the symmetric key that you created earlier for this
neighbor. (See “Adding Symmetric Keys” on page 2-149). The key value for the
symmetric key must be the same for both the sender and the receiver.
8. Check the Preferred Source box if the neighbor is a preferred NTP resource.
Preferred sources are contacted before non-preferred resources. You can specify
more than one preferred source.
This option is not available when Broadcast Server is selected as the neighbor
type (see step 3).
9. Click the OK button. The neighbor is now listed on the Special Features > Secure
NTP > NTP Neighbor screen.
Configuring the Wireless Edge Services zl Module as a Broadcast
Server
To enable the Wireless Edge Services zl Module to act as a broadcast server, follow
these steps:
1. Select Special Features > Secure NTP and click the NTP Neighbor tab.