D-Link DXS-3400 User Manual - Page 58

DXS-3400 Series Lite Layer 3 Stackable 10GbE Managed Switch Web UI Reference Guide Parameter Bitmask Description match the remaining bits of the option. Enter the hex bit mask for masking of the pattern. The masked pattern bits will be matched. If not specified, all bits entered in Hex 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 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 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 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. Users also have the ability to bind IP addresses within the DHCP pool to specific MAC addresses in order to keep consistent the IP addresses of devices that may be important to the upkeep of the network that require a static IP address. DHCP Server Global Settings This window is used to display and configure the DHCP server global parameters. To view the following window, click Management>DHCP > DHCP Server >DHCP Server Global Settings, as shown below: Figure 4-29DHCP Server Global Settings Window The fields that can be configured in DHCP Use Class Stateare described below: Parameter DHCP Use Class State Description Select to enable or disable the feature where the DHCP server uses a class. Click the Apply button to accept the changes made. The fields that can be configured in DHCP Server Settingsare described below: 48