Dhcp Server - D-Link xStack DGS-3420 Series Reference Manual

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch Web UI Reference Guide
To view this window, click Network Application > DHCP > DHCP Relay > DHCP Relay Option 61 Settings as
shown below:
The fields that can be configured are described below:
Parameter
DHCP Relay Option
61 Default
Client ID
Relay Rule
Client ID
Click the Apply button to accept the changes made.
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 Server

DHCP, or Dynamic Host Configuration Protocol, allows the switch to delegate IP addresses, subnet masks, default
gateways and other IP parameters to devices that request this information. This occurs when a DHCP enabled
device is booted on or attached to the locally attached network. This device is known as the DHCP client and when
enabled, it will emit query messages on the network before any IP parameters are set. When the DHCP server
receives this request, it returns a response to the client, containing the previously mentioned IP information that the
DHCP client then utilizes and sets on its local configurations.
The user can configure many DHCP related parameters that it will utilize on its locally attached network, to control
and limit the IP settings of clients desiring an automatic IP configuration, such as the lease time of the allotted IP
address, the range of IP addresses that will be allowed in its DHCP pool, the ability to exclude various IP
addresses within the pool so as not to make identical entries on its network, or to assign the IP address of an
important device (such as a DNS server or the IP address of the default route) to another device on the network.
Figure 9-7 DHCP Relay Option 61 Settings window
Description
Here the user can select the DHCP Relay Option 61 default action.
Drop – Specify to drop the packet.
Relay – Specify to relay the packet to an IP address. Enter the IP Address of the
default relay server. When there is no matching server found for the packet based on
option 61, the relay servers will be determined by this default relay server setting.
MAC Address – The client's client-ID which is the hardware address of client.
String – The client's client-ID, which is specified by administrator.
Drop – Specify to drop the packet.
Relay – Specify to relay the packet to an IP address.
MAC Address – The client's client-ID which is the hardware address of client.
String – The client's client-ID, which is specified by administrator.
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