D-Link DGS-3120-24TC - DHCP Local Relay Settings; Sntp; SNTP Settings

xStack® DGS-3120 Series Managed Switch Web UI Reference Guide
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Click the Add button to add a new entry based on the information entered.
Click the Delete button to remove the specific entry based on the information entered.
Click the Delete All button to remove all the entries listed.
DHCP Local Relay Settings
The DHCP local relay settings allows the user to add option 82 into DHCP request packets when the DHCP client
gets an IP address from the same VLAN. If the DHCP local relay settings are not configured, the Switch will flood
the packets to the VLAN. In order to add option 82 into the DHCP request packets, the DHCP local relay settings
and the state of the Global VLAN need to be enabled.
To view this window, click Network Application > DHCP > DHCP Local Relay Settings as shown below:
Figure 9–9 DHCP Local Relay Settings window
The fields that can be configured are described below:
Parameter Description
DHCP Local Relay
Global State
Enable or disable the DHCP Local Relay Global State. The default is Disabled.
VLAN Name
This is the VLAN Name that identifies the VLAN the user wishes to apply the DHCP
Local Relay operation.
State
Enable or disable the configure DHCP Local Relay for VLAN state.
Click the Apply button to accept the changes made for each individual section.
SNTP
The Simple Network Time Protocol (SNTP) is a protocol for synchronizing computer clocks through the Internet. It
provides comprehensive mechanisms to access national time and frequency dissemination services, organize the
SNTP subnet of servers and clients, and adjust the system clock in each participant.
SNTP Settings
Users can configure the time settings for the Switch.
To view this window, click Network Application > SNTP > SNTP Settings as shown below:
Figure 9–10 SNTP Settings window