Enabling Handling Of Option 82; Configuring Dhcp Server Compatibility; Configuring The Dhcp Server To Broadcast All Responses - HPE FlexNetwork HSR6800 Configuration Manual

Step
1. Enter system view.
2. (Optional.) Set the maximum
number of ping packets to be
sent for conflict detection.
3. (Optional.) Set the ping
response timeout time.

Enabling handling of Option 82

Perform this task to enable the DHCP server to handle Option 82. Upon receiving a DHCP request
that contains Option 82, the DHCP server adds Option 82 into the DHCP response.
If you disable the DHCP to handle Option 82, it does not add Option 82 into the response message.
You must enable handling of Option 82 on both the DHCP server and the DHCP relay agent to
ensure correct processing for Option 82. For information about enabling handling of Option 82 on the
DHCP relay agent, see
To enable the DHCP server to handle Option 82:
Step
1. Enter system view.
2. Enable the server to handle
Option 82.

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

By default, the DHCP server broadcasts a response only when the broadcast flag in the DHCP
request is set to 1. You can configure the DHCP server to ignore the broadcast flag and always
broadcast a response. This feature is useful when some clients set the broadcast flag to 0 but do not
accept unicast responses.
The DHCP server always unicasts a response in the following situations, regardless of whether this
feature is configured or not:
•
The DHCP request is from a DHCP client that has an IP address (the ciaddr field is not 0).
•
The DHCP request is forwarded by a DHCP relay agent from a DHCP client (the giaddr field is
not 0).
To configure the DHCP server to broadcast all responses:
Step
1. Enter system view.
Command
system-view
dhcp server ping packets
number
dhcp server ping timeout
milliseconds
"Configuring Option 82."
Command
system-view
dhcp server relay information
enable
Command
system-view
46
Remarks
N/A
The default setting is one.
The value 0 disables IP address
conflict detection.
The default setting is 500 ms.
The value 0 disables IP address
conflict detection.
Remarks
N/A
By default, handling of
Option 82 is enabled.
Remarks
N/A