Displaying And Maintaining The Dhcp Server; Dhcp Server Configuration Examples - HP A5120 EI Series Configuration Manual

Displaying and maintaining the DHCP server

To do...
Display information about IP
address conflicts
Display information about lease
expiration
Display information about
assignable IP addresses
Display IP addresses excluded from
automatic allocation in the DHCP
address pool
Display information about bindings
Display information about DHCP
server statistics
Display tree organization
information of address pool(s)
Clear information about IP address
conflicts
Clear information about dynamic
bindings
Clear information about DHCP
server statistics
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.

DHCP server configuration examples

DHCP networking involves two types:
The DHCP server and client are on the same subnet and exchange messages directly.

The DHCP server and client are not on the same subnet and they communicate with each other via a

DHCP relay agent.
The DHCP server configuration for the two types is the same.
Use the command...
display dhcp server conflict { all | ip ip-
address } [ | { begin | exclude | include }
regular-expression ]
display dhcp server expired { all | ip ip-
address | pool [ pool-name ] } [ | { begin |
exclude | include } regular-expression ]
display dhcp server free-ip [ | { begin |
exclude | include } regular-expression ]
display dhcp server forbidden-ip [ | { begin
| exclude | include } regular-expression ]
display dhcp server ip-in-use { all | ip ip-
address | pool [ pool-name ] } [ | { begin |
exclude | include } regular-expression ]
display dhcp server statistics [ | { begin |
exclude | include } regular-expression ]
display dhcp server tree { all | pool [ pool-
name ] } [ | { begin | exclude | include }
regular-expression ]
reset dhcp server conflict { all | ip ip-
address }
reset dhcp server ip-in-use { all | ip ip-
address | pool [ pool-name ] }
reset dhcp server statistics
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