Obtaining an ip address dynamically, Protocols and standards – H3C Technologies H3C S5120 Series Switches User Manual

Page 263

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4-2

Obtaining an IP Address Dynamically

A DHCP server can take the place of the BOOTP server in the following dynamic IP address

acquisition.

A BOOTP client dynamically obtains an IP address from a BOOTP server in the following steps:

1) The BOOTP client broadcasts a BOOTP request, which contains its own MAC address.

2) The BOOTP server receives the request and searches the configuration file for the corresponding

IP address and other information according to the MAC address of the BOOTP client. The BOOTP

server then returns a BOOTP response to the BOOTP client.

3) The BOOTP client obtains the IP address from the received response.

Protocols and Standards

Some protocols and standards related to BOOTP include:

z

RFC 951: Bootstrap Protocol (BOOTP)

z

RFC 2132: DHCP Options and BOOTP Vendor Extensions

z

RFC 1542: Clarifications and Extensions for the Bootstrap Protocol

Configuring an Interface to Dynamically Obtain an IP Address
Through BOOTP

Follow these steps to configure an interface to dynamically obtain an IP address:

To do…

Use the command…

Remarks

Enter system view

system-view

Enter interface view

interface interface-type
interface-number

Configure an interface to
dynamically obtain an IP
address through BOOTP

ip address bootp-alloc

Required

By default, an interface does
not use BOOTP to obtain an IP
address.

Displaying and Maintaining BOOTP Client Configuration

To do…

Use the command…

Remarks

Display BOOTP client
information

display bootp client [ interface
interface-type interface-number ]

Available in any view

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