Users Guide

and apply the Dell Networking OS image and startup configuration stored in the local flash, enter the stop bmp command
from the console. To reconfigure the switch so that it boots up in normal mode using the Dell Networking OS image and
startup configuration file in local flash, enter the reload-type normal-reload command and save it to the startup
configuration:
Dell# reload-type normal-reload
Dell# write memory
Dell# reload
• To re-enable BMP mode for the next reload, enter the reload-type jump-start command.
Configuring the DHCP Client System
This section describes how to configure and view an interface as a DHCP client to receive an IP address.
Dell Networking OS Behavior: The ip address dhcp command enables DHCP server-assigned dynamic addresses on an
interface. The setting persists after a switch reboot. To stop DHCP transactions and save the dynamically acquired IP address,
use the shutdown command on the interface. To display the dynamic IP address and show DHCP as the mode of IP address
assignment, use the
show interface type slot/port[/subport] command. To unconfigure the IP address, use the no
shutdown command when the lease timer for the dynamic IP address is expired. The interface acquires a new dynamic IP
address from the DHCP server.
To configure a secondary (backup) IP address on an interface, use the ip address command at the INTERFACE configuration
level.
Use the no ip address dhcp command to:
• Release the IP address dynamically acquired from a DHCP server from the interface.
• Disable the DHCP client on the interface so it cannot acquire a dynamic IP address from a DHCP server.
• Stop DHCP packet transactions on the interface.
When you enter the release dhcp command, the IP address dynamically acquired from a DHCP server is released from an
interface. The ability to acquire a new DHCP server-assigned address remains in the running configuration for the interface. To
acquire a new IP address, use the renew DHCP command in EXEC Privilege mode or the ip address dhcp command in
INTERFACE Configuration mode.
To manually configure a static IP address on an interface, use the ip address command. A prompt displays to release an
existing dynamically acquired IP address. If you confirm, the ability to receive a DHCP server-assigned IP address is removed.
To enable acquiring a dynamic IP address from a DHCP server on an interface configured with a static IP address, use the ip
address dhcp command. A prompt displays to confirm the IP address reconfiguration. If you confirm, the statically
configured IP address is released. An error message displays if you enter the
release dhcp or renew dhcp commands.
To renew the lease time of the dynamically acquired IP, use the renew dhcp command on an interface already configured
with a dynamic IP address.
NOTE
: To verify the currently configured dynamic IP address on an interface, use the show ip dhcp lease command.
The show running-configuration command output only displays ip address dhcp. The currently assigned dynamic IP
address does not display.
To configure and view an interface as a DHCP client to receive an IP address, use the following commands.
1 Enter INTERFACE Configuration mode on an Ethernet interface.
CONFIGURATION mode
interface type slot/port[/subport]
2 Acquire the IP address for an Ethernet interface from a DHCP network server.
INTERFACE mode
ip address dhcp
Dynamic Host Configuration Protocol (DHCP) 271