Cisco Systems 32369 Configuring a DHCP Server Boot File, Configuring the Number of Ping Packets

DHCP Configuration Task List

To configure manual bindings, use the following commands beginning in global configuration mode:

Step	Command	Purpose
1	Router(config)# ip dhcp pool name	Creates a name for the a DHCP server address
		pool and places you in DHCP pool configuration
		mode—identified by the (config-dhcp)# prompt.
2	Router(config-dhcp)# host address [mask	Specifies the IP address and subnet mask of the
	/prefix-length ]	client.
		The prefix length specifies the number of bits that
		comprise the address prefix. The prefix is an
		alternative way of specifying the network mask of
		the client. The prefix length must be preceded by
		a forward slash (/).
3	Router(config-dhcp)# hardware-address	Specifies a hardware address for the client.
	hardware-address type
	or
	Router(config-dhcp)# client-identifier	Specifies the distinct identification of the client in
	unique-identifier	dotted-hexadecimal notation, for example,
		01b7.0813.8811.66, where 01 represents the
		Ethernet media type.

4Router(config-dhcp)# client-namename (Optional) Specifies the name of the client using any standard ASCII character. The client name should not include the domain name. For example, the name mars should not be specified as mars.cisco.com.

Configuring a DHCP Server Boot File

The boot file is used to store the boot image for the client. The boot image is generally the operating system the client uses to load. To specify a boot file for the DHCP client, use the following command in DHCP pool configuration mode:

Command Purpose

Router(config-dhcp)# bootfile filename Specifies the name of the file that is used as a boot image.

Configuring the Number of Ping Packets

By default, the DHCP server pings a pool address twice before assigning the address to a requesting client. If the ping is unanswered, the DHCP server assumes (with a high probability) that the address is not in use and assigns the address to the requesting client. To change the number of ping packets the DHCP server should send to the pool address before assigning the address, use the following command in global configuration mode:

Command Purpose

Router(config)# ip dhcp ping packets Specifies the number of ping packets the DHCP server sends to

numbera pool address before assigning the address to a requesting cli- ent. The default is two packets.

8Release 12.0(1)T