TP-Link TL-SL3452 User Guide - Page 116

ip address dhcp, hostname, ip address, ip address dhcp hostname

Page 116 highlights

TL-SG3109/TL-SL3428/TL-SL3452 Gigabit Managed Switch Family CLI Reference Guide 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 • 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 Configuration This command has no default configuration. Command Mode Interface Configuration (Ethernet, VLAN, port-channel) mode User Guidelines 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 DISCOVER 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 deconfigures any IP address that was acquired, thus sending a DHCPRELEASE message. Example The following example acquires an IP address for Ethernet port 4 from DHCP. Console(config)# interface ethernet e4 Console(config-if)# ip address dhcp Page 115

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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
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 Configuration
This command has no default configuration.
Command Mode
Interface Configuration (Ethernet, VLAN, port-channel) mode
User Guidelines
The
ip address dhcp
command allows any interface to dynamically learn its IP address by using the DHCP pro-
tocol.
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 DISCOVER 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 deconfigures any IP address that was acquired, thus sending a DHCPRE-
LEASE message.
Example
The following example acquires an IP address for Ethernet port 4 from DHCP.
Console(config)#
interface ethernet
e
4
Console(config-if)#
ip address dhcp
TL-SG3109/TL-SL3428/TL-SL3452 Gigabit Managed Switch Family CLI Reference Guide
Page 115