Operation Manual - DHCP
Quidway S3500-EA Series Ethernet Switches Chapter 2 DHCP Server Configuration
Huawei Technologies Proprietary
2-112.5.10 Configuring the TFTP Server and Bootfile Name for the Client This task is to specify the IP address and name of a TFTP server and the bootfile name
for a DHCP address pool. A switch acting as DHCP client uses these parameters to
contact the TFTP server to get the configuration file used for system initialization when
the device starts up with null configuration. This process is called autoconfiguration and
is described below:
When a switch starts up with null configuration, the system sets a specific interface
(VLAN interface 1) as the DHCP client to request from the DHCP server parameters
such as the IP address and name of a TFTP server, and bootfile name.
After getting related parameters, the DHCP client will send a TFTP request to obtain the
configuration file from the specified TFTP server for system initialization.
Note that if the client cannot get related parameters, it will use the empty configuration
file for system initialization. When option 55 in the requesting client message contains parameters of option 66,
option 67, or option 150, the DHCP server will return the IP address and name of the
specified TFTP server, and bootfile name to the client.
To configure the IP address and name of the TFTP server and the bootfile name for a
DHCP address pool, use the following commands: To do… Use the command…
Remarks Enter system view system-view
Enter DHCP address pool view dhcp server
ip-pool pool-name
Specify the TFTP server tftp-server
ip-address ip-address Optional Not specified by default
Specify the name of the TFTP server tftp-server domain-name domain-name Optional
Not specified by default
Specify the bootfile name bootfile-name
bootfile-name
Optional
Not specified by default 2.5.11 Configuring Self-Defined DHCP Options
By configuring self-defined DHCP options, you can
Define new DHCP options. New configuration options will come out with DHCP
development. T o support these new options, you can add them into the attribute
list of the DHCP server.。