Filter
Top Products
Command Line Interface
4-132
4
Command Modes
DHCP Pool Configuration
Example
The following example leases an address to clients using this pool for 7 days.
host
Use this command to specify the IP address and network mask to manually bind to a
DHCP client. Use the no form to remove the IP address for the client.
Syntax
host address [mask]
no host
• address - Specifies the IP address of a client.
• mask - Specifies the network mask of the client.
Default Setting
None
Command Mode
DHCP Pool Configuration
Usage Guidelines
• Host addresses must fall within the range specified for an existing network pool.
• When a client request is received, the switch first checks for a network
address pool matching the gateway where the request originated (i.e., if the
request was forwarded by a relay server). If there is no gateway in the client
request (i.e., the request was not forwarded by a relay server), the switch
searches for a network pool matching the interface through which the client
request was received. It then searches for a manually configured host address
that falls within the matching network pool.
• When searching for a manual binding, the switch compares the client identifier
for DHCP clients, and then compares the hardware address for DHCP or
BOOTP clients.
• If no manual binding has been specified for a host entry with the
client-identifier or hardware-address commands, then the switch will
assign an address from the matching network pool.
• If the mask is unspecified, DHCP examines its address pools. If no mask is
found in the pool database, the Class A, B, or C natural mask is used (see
page 3-227). This command is valid for manual bindings only.
•The no host command only clears the address from the DHCP server
database. It does not cancel the IP address currently in use by the host.
Console(config-dhcp)#lease 7
Console(config-dhcp)#