HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Services Configuration G - Page 41
Creating a DHCP address pool, Specifying IP address ranges for a DHCP address pool
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Tasks at a glance Perform at least one of the following tasks: • Specifying IP address ranges for a DHCP address pool • Specifying gateways for the client • Specifying a domain name suffix for the client • Specifying DNS servers for the client • Specifying WINS servers and NetBIOS node type for the client • Specifying BIMS server information for the client • Specifying the TFTP server and boot file name for the client • Specifying a server for the DHCP client • Configuring Option 184 parameters for the client • Configuring self-defined DHCP options Creating a DHCP address pool Step 1. Enter system view. 2. Create a DHCP address pool and enter its view. Command system-view dhcp server ip-pool pool-name Remarks N/A By default, no DHCP address pool is created. Specifying IP address ranges for a DHCP address pool You can configure both static and dynamic address allocation mechanisms in a DHCP address pool. For dynamic address allocation, you can specify either a primary subnet with multiple address ranges or a primary subnet with multiple secondary subnets for a DHCP address pool, but you cannot configure both. Specifying a primary subnet and multiple address ranges for a DHCP address pool Some scenarios need to classify DHCP clients in the same subnet into different address groups. To satisfy this need, you can configure DHCP user classes and specify different address ranges for the classes so that the clients matching a user class get the IP addresses of a specific address range. In addition, you can specify a common address range for the clients that do not match any user class. If no common address range is specified, such clients fail to obtain IP addresses. If there is no need to classify clients, you do not need to configure DHCP user classes or their address ranges. Follow these guidelines when you specify a primary subnet and multiple address ranges for a DHCP address pool: • If you use the network or address range command multiple times for the same address pool, the most recent configuration takes effect. • IP addresses specified by the forbidden-ip command are not assignable in the current address pool, but are assignable in other address pools. IP addresses specified by the dhcp server forbidden-ip command are not assignable in any address pool. To specify a primary subnet and multiple address ranges for a DHCP address pool: 32