Syntax: clear ip dhcp-server binding { address | * }
• address - The IP address to be deleted
• The wildcard ( *) clears all IP addresses.
Enabling DHCP server
The ip dhcp-server enable command enables DHCP server, which is disabled by default.
Syntax: [no] ip dhcp-server enable
The no version of this command disables DHCP server.
Disabling DHCP server on the management port
By default, when DHCP server is enabled, it responds to DHCP client requests received on the management port. If desired, you can
prevent the response to DHCP client requests received on the management port, by disabling DHCP server support on the port. When
disabled, DHCP client requests that are received on the management port are silently discarded.
To disable DHCP server on the management port, enter the following command at the global
conguration level of the CLI.
device(config)# no ip dhcp-server mgmt
To re-enable DHCP server on the management port after it has been disabled, enter the ip dhcp-server mgmt command:
device(config)# ip dhcp-server mgmt
Syntax: [no] ip dhcp-server mgmt
Setting the wait time for ARP-ping response
At startup, the server reconciles the lease-binding database by sending an ARP-ping packet out to every client. If there is no response to
the ARP-ping packet within a set amount of time (set in seconds), the server deletes the client from the lease-binding database. The
minimum setting is 5 seconds and the maximum is 30 seconds.
Syntax: ip dhcp-server arp-ping-timeout num
• num - The number of seconds to wait for a response to an ARP-ping packet.
NOTE
Do not alter the default value unless it is necessary. Increasing the value of this timer may increase the time to get console
access after a reboot.
Creating an address pool
The ip dhcp-server pool command puts you in pool
conguration mode, and allows you to create an address pool.
device(config)# ip dhcp-server pool
device(config-dhcp-name)# ip dhcp-server pool monterey
device(config-dhcp-monterey)#
These commands create an address pool named "monterey".
Syntax: ip dhcp-server pool name
Conguring IP parameters - Layer 3 switches
FastIron Ethernet Switch Layer 3 Routing
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