Consolidated Platform Configuration Guide, Cisco Ios Release 15.2(4)E (Catalyst 2960-X Switches - Cisco Catalyst 2960 series Configuration Manual

Configuring DHCP Server Port-Based Address Allocation
DETAILED STEPS
Command or Action
Step 1
enable
Example:
Switch> enable
Step 2
configure terminal
Example:
Switch# configure terminal
Step 3 ip dhcp use subscriber-id client-id
Example:
Switch(config)# ip dhcp use subscriber-id
client-id
Step 4 ip dhcp subscriber-id interface-name
Example:
Switch(config)# ip dhcp subscriber-id
interface-name
Step 5 interface interface-id
Example:
Switch(config)# interface gigabitethernet1/0/1
Step 6 ip dhcp server use subscriber-id client-id
Example:
Switch(config-if)# ip dhcp server use
subscriber-id client-id
Step 7
end
Example:
Switch(config)# end
Step 8 show running-config
Example:
Switch# show running-config

Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)

1286
Purpose
Enables privileged EXEC mode. Enter your password if
prompted.
Enters the global configuration mode.
Configures the DHCP server to globally use the subscriber
identifier as the client identifier on all incoming DHCP
messages.
Automatically generates a subscriber identifier based on the
short name of the interface.
A subscriber identifier configured on a specific interface
takes precedence over this command.
Specifies the interface to be configured, and enter interface
configuration mode.
Configures the DHCP server to use the subscriber identifier
as the client identifier on all incoming DHCP messages on
the interface.
Returns to privileged EXEC mode.
Verifies your entries.