Configuring Dhcp Server Compatibility; Configuring The Dhcp Server To Broadcast All Responses; Configure The Dhcp Server To Ignore Bootp Requests; Configuring The Dhcp Server To Send Bootp Responses In The Format Specified In Rfc 1048 - HP 5920 Series Configuration Manual

Configuring DHCP server compatibility

Perform this task to enable the DHCP server to support DHCP clients that are incompliant with RFC.

Configuring the DHCP server to broadcast all responses

Typically, the DHCP server broadcasts a response only when the broadcast flag in the DHCP request is
set to 1. To work with DHCP clients that set the broadcast flag to 0 but do not accept unicast responses,
configure the DHCP server to ignore the broadcast flag and always broadcast a response.
Upon receiving a DHCP request from a DHCP relay agent (the giaddr field is not 0), the DHCP server
unicasts a response (the destination address is giaddr) to the DHCP relay agent regardless of whether it
is enabled to broadcast all responses.
To configure the DHCP server to broadcast all responses:
Step
1. Enter system view.
2. Enable the DHCP server to
broadcast all responses.

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.
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
1. Enter system view.
Command
system-view
dhcp server always-broadcast
Command
system-view
dhcp server bootp ignore
Command
system-view
40
Remarks
N/A
By default, the DHCP server looks at
the broadcast flag to decide
whether to broadcast or unicast a
response.
Remarks
N/A
By default, the DHCP server
processes BOOTP requests.
Remarks
N/A