Configuring An Interface To Dynamically Obtain An Ip Address Through Bootp; Displaying And Maintaining Bootp Client Configuration; Bootp Client Configuration Example - 3Com Switch 4800G 24-Port Configuration Manual

832 C 61: BOOTP C
HAPTER
Obtaining an IP Address
Dynamically
Protocols and Standards
Configuring an
Interface to
Dynamically Obtain an
IP Address Through
BOOTP
Displaying and
Maintaining BOOTP
Client Configuration
BOOTP Client
Configuration
Example
C
LIENT ONFIGURATION
n
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.
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
■
Follow these steps to configure an interface to dynamically obtain an IP address:
To do...
Enter system view
Enter interface view
Configure an interface to
dynamically obtain IP address
through BOOTP
To do...
Display related information on
a BOOTP client
Network requirement
Switch B's port belonging to VLAN 1 is connected to the LAN. VLAN-interface 1
obtains an IP address from the DHCP server by using BOOTP.
Network diagram
See Figure 246.
Configuration procedure
The following describes only the configuration on Switch B serving as a client.
Use the command...
system-view
interface interface-type
interface-number
ip address bootp-alloc
Use the command...
display bootp client
[ interface interface-type
interface-number ]
Remarks
-
-
Required
By default, an interface does
not use BOOTP to obtain an IP
address.
Remarks
Available in any view