mac

Commands for DHCP
304
mask in decimal format; <prefix-length> means mask is indicated by prefix. For
example, mask 255.255.255.0 in prefix is “24”, and mask 255.255.255.252 in prefix is
“30”.
Command Mode: DHCP Address Pool Mode
Default: None
Usage Guide: If no mask or prefix is configured when configuring the IP address, and no
information in the IP address pool indicates anything about the mask, the system will
assign a mask automatically according to the IP address class.
This command is used with “hardware address” command or “client identifier” command
when binding addresses manually. If the identifier or hardware address of the requesting
client matches the specified identifier or hardware address, the DHCP server assigns the
IP address defined in “host” command to the client.
Example: Specifying IP address 10.1.128.160 to be bound to user with hardware
address 00-10-5a-60-af-12 in manual address binding.
Switch(dhcp-1-config)#hardware-address 00-10-5a-60-af-12
Switch(dhcp-1-config)#host 10.1.128.160 24
Related command: hardware-address, client-identifier
26.1.14 ip dhcp conflict logging
Command: ip dhcp conflict logging
no ip dhcp conflict logging
Function: Enables logging for address conflicts detected by the DHCP server; the “no ip
dhcp conflict logging” command disables the logging.
Default: Logging for address conflict is enabled by default.
Command mode: Global Mode
Usage Guide: When logging is enabled, once the address conflict is detected by the
DHCP server, the conflicting address will be logged. Addresses present in the log for
conflicts will not be assigned dynamically by the DHCP server until the conflicting
records are deleted.
Example: Disable logging for DHCP server.
Switch(config)#no ip dhcp conflict logging
Related Command: clear ip dhcp conflict
26.1.15 ip dhcp disable
Command: ip dhcp disbale
no ip dhcp disable
Function: The port disables DHCP services, the no command enables DHCP services.