Allied Telesis AT-S94 CLI (AT-8000S Series) - Manual (Page 137)

IP Addressing Commands
Page 136
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 (VLAN) 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.
The IP address is defined only on the management VLAN.
Example
The following example acquires an IP address for VLAN 1 from DHCP.
ip default-gateway
The ip default-gateway Global Configuration mode command defines a default gateway ( device). Use the no
form of this command to return to the default configuration.
Syntax
ip default-gateway ip-address
no ip default-gateway
Parameters
•
ip-address — Valid IP address of the default gateway.
console(config)# interface vlan 1
console(config-if)# ip address dhcp