HP BladeSystem bc2800 Command Line Interface Reference Guide HP BladeSystem PC - Page 164

ip address dhcp

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IP Addressing Commands ip address dhcp The ip address dhcp Interface Configuration (Ethernet, VLAN, port-channel) mode command acquires an IP address for an Ethernet interface from the Dynamic Host Configuration Protocol (DHCP) server. To deconfigure an acquired IP address, use the no form of this command. Syntax ip address dhcp [hostname host-name] no ip address dhcp Parameters n host-name - Specifies the name of the host to be placed in the DHCP option 12 field. This name does not have to be the same as the host name specified in the hostname Global Configuration mode command. (Range: 1-20 characters) Default Setting This command has no default configuration. Command Mode Interface Configuration (Ethernet, VLAN, port-channel) mode Command Usage The ip address dhcp command allows any interface to dynamically learn its IP address by using the DHCP protocol. Some DHCP servers require that the DHCPDISCOVER message have a specific host name. The ip address dhcp hostname host-name command is most typically used when the host name is provided by the system administrator. If the device is configured to obtain its IP address from a DHCP server, it sends a DHCPDISCOVER message to provide information about itself to the DHCP server on the network. If the ip address dhcp command is used with or without the optional keyword, the DHCP option 12 field (host name option) is included in the DHCPDISCOVER message. By default, the specified DHCP host name is the globally configured host name of the device. However, the ip address dhcp hostname host-name command can be used to place a different host name in the DHCP option 12 field. The no ip address dhcp command de-configures any IP address that was acquired, thus sending a DHCPRELEASE message. Example The following command acquires an IP address for VLAN 1 from DHCP. Console(config)# interface vlan 1 Console(config-if)# ip address dhcp 11-2 www.hp.com HP PC Blade Switch CLI Reference Guide

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11-2
www.hp.com
HP PC Blade Switch CLI Reference Guide
IP Addressing Commands
ip address dhcp
The
ip address dhcp
Interface Configuration (Ethernet, VLAN, port-channel) mode command
acquires an IP address for an Ethernet interface from the Dynamic Host Configuration Protocol
(DHCP) server. To deconfigure an acquired IP address, use the
no
form of this command.
Syntax
ip address dhcp
[
hostname
host-name
]
no ip address dhcp
Parameters
n
host-name
— Specifies the name of the host to be placed in the DHCP option 12 field. This
name does not have to be the same as the host name specified in the
hostname
Global
Configuration mode command. (Range: 1-20 characters)
Default Setting
This command has no default configuration.
Command Mode
Interface Configuration (Ethernet, VLAN, port-channel) mode
Command Usage
The
ip address dhcp
command allows any interface to dynamically learn its IP address by using
the DHCP protocol.
Some DHCP servers require that the DHCPDISCOVER message have a specific host name. The
ip address dhcp hostname
host-name
command is most typically used when the host name is
provided by the system administrator.
If the device is configured to obtain its IP address from a DHCP server, it sends a
DHCPDISCOVER message to provide information about itself to the DHCP server on the
network.
If the
ip address dhcp
command is used with or without the optional keyword, the DHCP option
12 field (host name option) is included in the DHCPDISCOVER message. By default, the
specified DHCP host name is the globally configured host name of the device. However, the
ip
address dhcp hostname
host-name
command can be used to place a different host name in the
DHCP option 12 field.
The
no ip address dhcp
command de-configures any IP address that was acquired, thus sending
a DHCPRELEASE message.
Example
The following command acquires an IP address for VLAN 1 from DHCP.
Console(config)
# interface vlan
1
Console(config-if)
# ip address dhcp