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DGS-3130 Series Layer 3 Stackable Managed Switch Web UI Reference Guide
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Figure 4-27 DHCP Class Settings (Edit) Window
The fields that can be configured are described below:
Parameter Description
Option Enter the DHCP option number. The range is from 1 to 255.
Hex Enter the hex pattern of the specified DHCP option. Tick the * check box not to
match the remaining bits of the option.
Bitmask
Enter the hex bit mask for masking of the pattern. The masked pattern bits will
be matched. If not specified, all bits entered in the Hex field will be checked.
Click the Apply button to accept the changes made.
Click the Delete button to remove the specified entry.
Click the Back button to return to the previous window.
DHCP Server
The Dynamic Host Configuration Protocol (DHCP) allows the Switch to designate 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 will allocate an IP address to the client. The DHCP client may be then utilize the IP address allocated by the
DHCP server as its local configuration.
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 allocated IP
address, the range of IP addresses that will be allowed in its DHCP pool, the ability to exclude various IP addresses
within the range 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.
Users also have the ability to bind IP addresses within the DHCP pool to specific MAC addresses in order to assign
the same IP addresses to important devices.
DHCP Server Global Settings
This window is used to display and configure the global DHCP server parameters.
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