D-Link DXS-3400 Emulator - Page 271

DXS-3400 Series Lite Layer 3 Stackable 10GbE Managed Switch CLI Reference Guide 22. DHCP Server Commands 22-1 address range This command is used to specify an IP address range to be associated with a DHCP class in a DHCP address pool. Use the no form of this command to remove the address range to be associated with a DHCP class. address range START-IP-ADDRESS END-IP-ADDRESS no address range START-IP-ADDRESS END-IP-ADDRESS Parameters START-IP-ADDRESS END-IP-ADDRESS Specifies the address or the first address in a range of addresses. Specifies the last address in a range of addresses. Default None. Command Mode DHCP Pool Class Configuration Mode. Command Default Level Level: 12. Usage Guideline Use the address range command and the class command in a DHCP address pool to restrict the allocation of IP address from a subnet in the address pool. The network for allocating addresses is partitioned based on the DHCP option value of the request. If an address pool has classes defined, the allocation of address will based on the class from this address pool if the IP DHCP use class setting is enabled. When the server attempts to allocate an address from an address pool and if the address pool has classes defined, the server will check first whether the pool contains the subnet appropriate for the request. If the subnet of the address pool contains the GIADDR (if not zero) or the subnet of the received interface, then the server will directly matching the class definition of the address pool to allocate the address. The server will only allocate an address from the matched class. To remove an address range, only the exact range of addresses that are previously configured can be specified. Example This example shows how a DHCP class "Customer-A" is created with the relay information option matching pattern. They are associated with an address range in the DHCP address pool "pool1". Switch# configure terminal Switch(config)# ip dhcp class Customer-A Switch(config-dhcp-class)# option 82 hex 1234 * Switch(config-dhcp-class)# exit Switch(config)# ip dhcp pool pool1 Switch(config-dhcp-pool)# network 172.28.5.0/24 Switch(config-dhcp-pool)# class Customer-A Switch(config-dhcp-pool-class)# address range 172.28.5.1 172.28.5.12 witch(config-dhcp-pool-class)# 267