Dhcp server configuration task list, Configuring an address pool on the dhcp server, Displaying and maintaining the dhcp server – H3C Technologies H3C S12500 Series Switches User Manual

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Configuring the DHCP server to send BOOTP responses in the
format specified in RFC 1048

The format of the vend field in the requests sent by some BOOTP clients does not meet the requirements
specified in RFC 1048. By default, the DHCP server does not process the vend field of such packets and

copies the field into the responses.
With this function enabled, the DHCP server responds to such requests by encapsulating the

corresponding option in the format specified in RFC 1048 into the vend field of responses.
To configure the DHCP server to send BOOTP responses in the format specified in RFC 1048:

Step Command

Remarks

1.

Enter system view.

system-view N/A

2.

Enable the DHCP server to
send BOOTP responses in

RFC 1048 format.

dhcp server bootp
reply-rfc-1048

By default, sending BOOTP responses in RFC
1048 format by the DHCP server is disabled.
This configuration takes effect only on the
BOOTP clients that request for a statically

bound address.

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Displaying and maintaining the DHCP server

IMPORTANT:

A restart of the DHCP server or execution of the reset dhcp server ip-in-use command deletes all lease
information. The DHCP server denies any DHCP request for lease extension, and the client must request an

IP address again.

Execute display commands in any view and reset commands in user view.

Task Command

Display information about IP address conflicts. display dhcp server conflict [ ip ip-address ]

Display information about lease-expired IP
addresses.

display dhcp server expired [ ip ip-address | pool pool-name ]

Display information about assignable IP
addresses.

display dhcp server free-ip [ pool pool-name ]

Display information about assigned IP
addresses.

display dhcp server ip-in-use [ ip ip-address | pool

pool-name ]

Display DHCP server statistics.

display dhcp server statistics [ pool pool-name ]

Display information about DHCP address
pools.

display dhcp server pool [ pool-name ]

Clear information about IP address conflicts.

reset dhcp server conflict [ ip ip-address ]

Clear information about lease-expired IP
addresses.

reset dhcp server expired [ ip ip-address | pool pool-name ]

Clear information about assigned IP
addresses.

reset dhcp server ip-in-use [ ip ip-address | pool pool-name ]

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