Configuring The Handling Mode For Option; Displaying And Maintaining The Dhcp Server - 3Com Switch 4800G 24-Port Configuration Manual

808 C 57: DHCP S
HAPTER
Configuring the
Handling Mode for
Option 82
Displaying and
Maintaining the DHCP
Server
C
ERVER ONFIGURATION
When the DHCP server receives a message with Option 82, if the server is
configured to handle Option 82, it will return a response message carrying Option
82 to assign an IP address to the requesting client.
If the server is configured to ignore Option 82, it will assign an IP address to the
client without adding Option 82 in the response message.
Configuration prerequisites
Before performing this configuration, complete the following configuration on the
DHCP server:
Enable DHCP
■
Configure the DHCP address pool
■

Configuring the handling mode for Option 82

Follow these steps to enable the DHCP server to handle Option 82:
To do...
Enter system view
Enable the server to handle
Option 82
n
To support Option 82, it is required to perform configuration on both the DHCP
server and relay agent (or the device enabled with DHCP Snooping). Refer to
"Configuring the DHCP Relay Agent to Support Option 82" on page 818 and
"Configuring DHCP Snooping to Support Option 82" on page 828 for related
configuration details.
To do...
Display information about IP
address conflicts
Display information about
lease expiration
Display information about
assignable IP addresses
Display IP addresses excluded
from dynamic allocation in the
DHCP address pool
Display information about
bindings
Display information about
DHCP server statistics
Display information about the
address pool tree organization
Use the command...
system-view
dhcp server relay
information enable
Use the command...
display dhcp server conflict { all | ip
ip-address }
display dhcp server expired { all | ip
ip-address | pool [ pool-name ] }
display dhcp server free-ip
display dhcp server forbidden-ip
display dhcp server ip-in-use { all | ip
ip-address | pool [ pool-name ] }
display dhcp server statistics
display dhcp server tree { all | pool
[ pool-name ] }
Remarks
-
Optional
Enabled by default.
Remarks
Available in any
view