3Com Switch 4210 9-Port, Configuration Manual

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DHCP/BOOTP C
LIENT
C
ONFIGURATION
Introduction to DHCP
Client
After you specify a VLAN interface as a DHCP client, the device can use DHCP to
obtain parameters such as IP address dynamically from the DHCP server, which
facilitates user configuration and management.
“Obtaining IP Addresses Dynamically” on page 282 for the process of how a
DHCP client dynamically obtains an IP address through DHCP.
Introduction to BOOTP
Client
After you specify an interface as a bootstrap protocol (BOOTP) client, the interface
can use BOOTP to get information (such as IP address) from the BOOTP server,
which simplifies your configuration.
Before using BOOTP, an administrator needs to configure a BOOTP parameter file
for each BOOTP client on the BOOTP server. The parameter file contains
information such as MAC address and IP address of a BOOTP client. When a
BOOTP client sends a request to the BOOTP server, the BOOTP server will search
for the BOOTP parameter file and return it to the client.
A BOOTP client dynamically obtains an IP address from a BOOTP server in the
following way:
1 The BOOTP client broadcasts a BOOTP request, which contains its own MAC
address.
2 The BOOTP server receives the request and searches for the corresponding IP
address according to the MAC address of the BOOTP client and sends the
information in a BOOTP response to the BOOTP client.
3 The BOOTP client obtains the IP address from the received response.
n
Because a DHCP server can interact with a BOOTP client, you can use the DHCP
server to assign an IP address to the BOOTP client, without needing to configure
any BOOTP server.
Configuring a
DHCP/BOOTP Client
Table 215 Configure a DHCP/BOOTP client
Operation Command Description
Enter system view system-view -
Enter VLAN interface view interface Vlan-interface
vlan-id
-