Motorola WS5100 manual Configuring Secure NTP, Defining the Sntp Configuration

5-16WS5100 Series Switch System Reference Guide

3. Refer to the contents of the Status tab for the following:

IP Address	Displays the IP address for the client with the MAC Address listed in the MAC
	Address/Client ID column.
MAC Address/Client	Displays the MAC address (client ID) of the client using the switch’s DHCP Server to access
ID	switch resources. The MAC address is read-only and cannot be modified.
Type	Displays the client type interoperating with the switch’s DHCP server.
Expiration	Displays the expiration date for the lease used by this particular DHCP client interoperating
	with the switch’s DHCP server.

4.To delete an entry from the list, highlight the address (by IP or MAC address) and click Delete.

5.Click the Export button to display a screen used to export DHCP Server status to secure location.

6.Click the Add button to create a new IP address range for a target host pool. For more information, see Adding a New DHCP Pool on page 5-6.

5.3Configuring Secure NTP

Secure Network Time Protocol (SNTP) is central for networks that rely on their switch managed infrastructure to supply system time. Without an SNTP implementation, switch time is unpredictable, which can result in data loss, failed processes and compromised security. With network speed, memory and capability increasing at an exponential rate, the accuracy, precision and synchronization of time is essential in a switch managed enterprise network. The switch can either use a dedicated server to supply system time or can use several forms of SNTP messaging to sync system time with network traffic authenticated and found secure for switch interoperation. When configuring a NTP server, the status will take approximately 15 minutes to update (within the switch Web UI) after the clock is synchronized.

NOTE: Often, the switch NTP status will not be adequately updated after modifying the NTP configuration. Periodically check the switch NTP status when making changes to ensure the proper time is displayed, as it may take awhile for the switch to update the proper NTP status.

The SNTP configuration activity is divided amongst the following tasks:

•Defining the SNTP Configuration

•Defining a SNTP Neighbor Configuration

•Viewing SNTP Associations

•Viewing SNTP Status

5.3.1Defining the SNTP Configuration

SNTP provides synchronized timekeeping between the switch and a time server. Use the Configuration tab to define how SNTP resources are authenticated before interacting with the switch and enable ACL IDs to be mapped to SNTP access groups.

To define the SNTP configuration:

1. Select Services > Secure NTP from the main menu tree.