Dynamic Host Configuration Protocol (DHCP) | 169Configure the System to be a DHCP ClientA DHCP client is a network device that requests an IP address and configuration parameters from a DHCPserver. On an MXL Switch, the DHCP client functionality is implemented as follows:• The switch can obtain a dynamically-assigned IP address from a DHCP server. The switch does notreceive a start-up configuration. To receive configuration parameters (FTOS version and aconfiguration file), you must use bare metal provisioning (BMP) on the switch (see Bare MetalProvisioning (BMP) on page 101). BMP is enabled on a switch as a factory-default setting.A switch cannot operate with BMP and as a DHCP client at the same time. You can disable BMP byentering the stop jump-start command in EXEC mode. After BMP is stopped, the switch can act as aDHCP client.• The dynamic IP address acquired by a DHCP client is for a limited period of time or until the clientreleases the address.• A DHCP server manages and assigns IP addresses to clients from an address pool stored on the server(see Create an IP Address Pool on page 163).• Dynamically-assigned IP addresses are supported only on Ethernet interfaces: 10-Gigabit, 40-Gigabit,and 100/1000/10000 Ethernet interfaces. DHCP client is supported on VLAN and port-channelinterfaces• The public out-of-band management interface and default VLAN 1 are configured, by default, as aDHCP client to acquire a dynamic IP address from a DHCP server.To configure an interface to operate as a DHCP client to receive an IP address, follow these steps:On an MXL switch configured as a DHCP client, you can release a dynamically-assigned IP addresswithout removing the DHCP client operation on the interface. You can later manually acquire a new IPaddress from the DHCP server as follows:Step Task Command Syntax Command Mode1 Enter interface configuration mode on anEthernet interface.interface type slot/port CONFIGURATION2 Configure the Ethernet interface to acquire its IPaddress from a DHCP network server.To release a DHCP-assigned IP address andremove the interface from being a DHCP client,enter the no ip address dhcp command.ip address dhcp INTERFACETask Command Syntax Command ModeRelease a dynamically-acquired IP address while retainingthe DHCP client configuration on the interface.release dhcp interface type slot/port EXEC PrivilegeAcquire a new IP address with renewed lease time from aDHCP server.renew dhcp interface type slot/port EXEC Privilege
