Configure The Dhcp Server To Ignore Bootp Requests - H3C SR8800-F Configuration Manual

Step
1. Enter system view.
2. Enable the DHCP server
to
responses.
Enabling the DHCP server to return a DHCP-NAK message
upon client notions of incorrect IP addresses
About returning a DHCP-NAK message upon client notions of incorrect IP addresses
A DHCP client can send a DHCP-REQUEST message directly or upon receiving a DHCP-OFFER
message. Upon receiving the request, the DHCP server will check if the client notion of its IP address
is correct. If the requested IP address is different from the allocated one or has no matching lease
record, the DHCP server remains silent by default. After the allocated IP address lease for the client
expires, the DHCP server will make response to request from the client.
This feature enables the DHCP server to return DHCP-NAK messages if the client notions of their IP
addresses are incorrect. After receiving the DHCP-NAK message, the DHCP client will request an IP
address again.
Procedure
To enable the DHCP server to return a DHCP-NAK message upon client notions of incorrect IP
addresses:
Step
1. Enter system view.
2. Enable the DHCP server
to return a DHCP-NAK
message if the client
notions of their IP
addresses are incorrect.

Configure the DHCP server to ignore BOOTP requests

The lease duration of the IP addresses obtained by the BOOTP clients is unlimited. For some
scenarios that do not allow unlimited leases, you can configure the DHCP server to ignore BOOTP
requests.
To configure the DHCP server to ignore BOOTP requests:
Step
1. Enter system view.
2. Configure the DHCP server to
ignore BOOTP requests.
Command
system-view
broadcast all
dhcp server always-broadcast
Command
system-view
dhcp server request-ip-address
check
Command
system-view
dhcp server bootp ignore
114
Remarks
N/A
By default, the DHCP server reads
the broadcast flag to decide
whether to broadcast or unicast a
response.
Remarks
N/A
By default, the DHCP server does
not return a DHCP-NAK message if
the client notions of their IP
addresses are incorrect.
Remarks
N/A
By default, the DHCP server
processes BOOTP requests.