R3166-R3206-HP High-End Firewalls Network Management Configuration Guide-6PW101

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• Enable DHCP
• Configure the DHCP address pool
2. Enable Option 82 handling
Follow these steps to enable the DHCP server to handle Option 82:
To do… Use the command…
Remarks
Enter system view system-view —
Enable the server to handle Option
82
dhcp server relay information
enable
Optional
Enabled by default.
NOTE:
To support Option 82 requires configuring both the DHCP server and relay agent. For more information,
see the chapter “DHCP relay agent configuration.”
Displaying and maintaining the DHCP server
NOTE:
Using the save command does not save DHCP server lease information. Therefore, when the system boots
up or the reset dhcp server ip-in-use command is executed, no lease information will be available in the
configuration file. The server will deny the request for lease extension from a client and the client needs to
request an IP address again.
To do… Use the command… Remarks
Display information about IP
address conflicts
display dhcp server conflict { all |
ip ip-address }
Available in any view
Display information about lease
expiration
display dhcp server expired { all |
ip ip-address | pool [ pool-name ] }
Available in any view
Display information about
assignable IP addresses
display dhcp server free-ip Available in any view
Display IP addresses excluded
from automatic allocation in the
DHCP address pool
display dhcp server forbidden-ip Available in any view
Display information about
bindings
display dhcp server ip-in-use { all |
ip ip-address | pool [ pool-name ] }
Available in any view
Display information about DHCP
server statistics
display dhcp server statistics Available in any view
Display tree organization
information of address pool(s)
display dhcp server tree { all | pool
[ pool-name ] }
Available in any view
Clear information about IP address
conflicts
reset dhcp server conflict { all | ip
ip-address }
Available in user view
Clear information about dynamic
bindings
reset dhcp server ip-in-use { all | ip
ip-address | pool [ pool-name ] }
Available in user view
Clear information about DHCP
server statistics
reset dhcp server statistics Available in user view