Obtaining An Ip Address Dynamically - H3C S5500-EI series Operation Manual

Operation Manual – DHCP
H3C S5500-EI Series Ethernet Switches
Because you need to configure a parameter file for each client on the BOOTP server,
BOOTP usually runs under a relatively stable environment. If the network changes
frequently, DHCP is applicable.
Note:
Because a DHCP server can interact with a BOOTP client, you can use the DHCP
server to configure an IP address for the BOOTP client, without any BOOTP server.

6.1.2 Obtaining an IP Address Dynamically

Note:
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 way:
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 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 the response.
6.1.3 Protocols and Standards
Some protocols and standards related to BOOTP include:
RFC 951: Bootstrap Protocol (BOOTP)
RFC 2132: DHCP Options and BOOTP Vendor Extensions
RFC 1542: Clarifications and Extensions for the Bootstrap Protocol
Chapter 6 BOOTP Client Configuration
6-2