Configuring DHCP Service DHCP Server Configuration
User Guide     447
Step 3 Bind an IP address to a client:
address
 ip-address
 client-identifier 
client-id
Bind the specified IP address to the client with a specific hexadecimal client ID.
ip-address: 
Specify the IP address to be bound.
client-id: 
Specify the client ID in hexadecimal format.
address 
ip-address 
client-identifier 
client-id
 ascii
Bind the specified IP address to the client with a specific ASCII client ID.
ip-address: 
Specify the IP address to be bound.
client-id: 
Specify the client ID with ASCII characters.
address 
ip-address
 hardware-address 
hardware-address
 hardware-type { ethernet | 
ieee802 }
Bind the specified IP address to the client with a specific MAC address.
ip-address: 
Specify the IP address to be bound.
hardware-address: 
Enter the MAC address of the client.
ethernet | ieee802
: 
Specify a hardware type for the client, either Ethernet or IEEE802.
Step 4 show ip dhcp server manual-binding
Verify the manual binding configuration.
Step 5 end
Return to Privileged EXEC Mode.
Step 6 copy running-config startup-config
Save the settings in the configuration file.
The following example shows how to bind the IP address 192.168.1.33 in pool1 (on the 
subnet of 192.168.1.0) to the host with the MAC address 74:D4:68:22:3F:34:
Switch#configure
Switch(config)#ip dhcp server pool pool1
Switch(dhcp-config)#address  192.168.1.33 hardware-address 74:d4:68:22:3f:34 
hardware-type ethernet
Switch(dhcp-config)#show ip dhcp server manual-binding
Pool Name   Client Id/Hardware Address    IP Address          Hardware Type     Bind Mode
-------             -------------------                            ---------                -----------                 --------
pool1              74:d4:68:22:3f:34                        192.168.1.33        Ethernet                MAC Address