Motorola Series Switch WS5100 - Manual (Page 186)

5-16 WS5100 Series Switch System Reference Guide
3. Refer to the contents of the Status tab for the following:
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 .
5.3 Configuring 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.
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
5.3.1 Defining 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.
IP Address Displays the IP address for the client with the MAC Address listed in the MAC
Address/Client ID column.
MAC Address/Client
ID Displays the MAC address (client ID) of the client using the switch’s DHCP Server to access
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.
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.