Dell Z9000 Configuration Manual page 253

DHCP <POOL> mode
network network/prefix-length
• network: the subnet address.
• prefix-length: specifies the number of bits used for the network portion of the address you
specify.
The prefix-length range is from 17 to 31.
4. Display the current pool configuration.
DHCP <POOL> mode
show config
After an IP address is leased to a client, only that client may release the address. Dell Networking OS
performs a IP + MAC source address validation to ensure that no client can release another clients
address. This validation is a default behavior and is separate from IP+MAC source address validation.
Configuration Tasks
To configure DHCP, an administrator must first set up a DHCP server and provide it with configuration
parameters and policy information including IP address ranges, lease length specifications, and
configuration data that DHCP hosts need.
Configuring the Dell system to be a DHCP server is a three-step process:
1. Configuring the Server for Automatic Address Allocation
2. Specifying a Default Gateway
Related Configuration Tasks
• Configure a Method of Hostname Resolution
• Creating Manual Binding Entries
• Debugging the DHCP Server
• Using DHCP Clear Commands
Excluding Addresses from the Address Pool
The DHCP server assumes that all IP addresses in a DHCP address pool are available for assigning to
DHCP clients.
You must specify the IP address that the DHCP server should not assign to clients.
To exclude an address, follow this step.
• Exclude an address range from DHCP assignment. The exclusion applies to all configured pools.
DHCP mode
excluded-address
Specifying an Address Lease Time
To specify an address lease time, use the following command.
• Specify an address lease time for the addresses in a pool.
DHCP <POOL>
lease {days [hours] [minutes] | infinite}
Dynamic Host Configuration Protocol (DHCP)
253