DHCP | 131Configuring a DHCP address pool (required)You can configure a DHCP address pool with a name that is a symbolic string (such as “Engineering”) oran integer (such as 0). Configuring a DHCP address pool also places you in DHCP pool configurationmode, as identified by the “(config-dhcp)#” prompt, from which you can configure pool parameters(for example, the IP subnet number and default router list). To configure a DHCP address pool, completethe following required steps. For details on these commands, see the DHCP Server Commands chapter inthe SFTOS Command Reference.Excluding IP addresses (optional)The DHCP server assumes that all IP addresses in a DHCP address pool subnet are available for assigningto DHCP clients. You must specify the IP address that the DHCP server should not assign to clients.Use the ip dhcp excluded-address lowaddress [highaddress] command in Global Config mode to createpartial scopes.Enabling the SFTOS DHCP Server feature (required)By default, the SFTOS DHCP Server feature is disabled on the S-Series. Use the service dhcp command inGlobal Config mode to enable the SFTOS DHCP Server feature:Verifying the DHCP Server ConfigurationUse the show ip dhcp server statistics command to verify the DHCP server configuration:Step Command Mode Purpose1 ip dhcp pool poolname Global Config Creates a name for the DHCP server address pool andplaces you in DHCP pool configuration mode (identifiedby the “config-dhcp#” prompt).2 network ip_address mask DHCP Pool Config Configures an IP address and subnet mask for this DHCPaddress pool, which contains the range of available IPaddresses that the DHCP server may assign to clients.3 default-router address1[address2...address8]DHCP Pool Config Specifies the default router list for a DHCP client. After aDHCP client boots, the client begins sending packets toits default router. The IP address of the default routermust be on the same subnet as the client.4 dns-server address1[address2...address8]DHCP Pool Config Specifies the IP address of a DNS server that is availableto a DHCP client. A single IP address can be configured.Note: If more than one address is configured, SFTOSoverwrites the configuration with the most recentaddress.
