Cisco Systems 32369 manual Configuration Examples, DHCP Database Agent Configuration Example

Configuration Examples

To display DHCP server information, use the following commands in EXEC mode, as needed:

Command	Purpose
Router> show ip dhcp binding [address]	Displays a list of all bindings created on a specific DHCP
	server.
Router> show ip dhcp conflict [address]	Displays a list of all address conflicts recorded by a specific
	DHCP server.
Router# show ip dhcp database [url]	Displays recent activity on the DHCP database.
	Note Use this command in privileged EXEC mode.
Router> show ip dhcp server statistics	Displays count information about server statistics and mes-
	sages sent and received.

Configuration Examples

This section provides the following configuration examples:

•DHCP Database Agent Configuration Example

•DHCP Address Pool Configuration Example

•Manual Bindings Configuration Example

DHCP Database Agent Configuration Example

The following example stores bindings on host 172.16.4.253. The file transfer protocol is FTP. The server should wait 2 minutes (120 seconds) before writing database changes.

ip dhcp database ftp://user:password@172.16.4.253/router-dhcp write-delay 120

DHCP Address Pool Configuration Example

In the following example, three DHCP address pools are created: one in network 172.16.0.0, one in subnetwork 172.16.1.0, and one in subnetwork 172.16.2.0. Attributes from network 172.16.0.0, such as the domain name, DNS server, NetBIOS name server, and NetBIOS node type, are inherited in subnetworks 172.16.1.0 and 172.16.2.0. In each pool, clients are granted 30-day leases and all addresses in each subnetwork, except the excluded addresses, are available to the DHCP server for assigning to clients. Table 1 lists the IP addresses for the devices in three DHCP address pools.

Table 1	DHCP Address Pool Devices
Pool 0 (Network 172.16.0.0)		Pool 1 (Subnetwork 172.16.1.0)		Pool 2 (Subnetwork 172.16.2.0)
Device	IP Address	Device	IP Address	Device	IP Address
Default routers	–	Default routers	172.16.1.100	Default routers	172.16.2.100
			172.16.1.101		172.16.2.101

DNS server	172.16.1.102	—	—	—	—
	172.16.2.102
NetBIOS name server	172.16.1.103	—	—	—	—
	172.16.2.103
NetBIOS node type	h-node	—	—	—	—

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