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Procedure
1. Enter system view.
system-view
2. Enter interface view.
interface interface-type interface-number
3. Enable MAC address check.
dhcp server check mac-address
By default, MAC address check is disabled.
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 always broadcast responses
About configuring the DHCP server to always broadcast 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).
Procedure
1. Enter system view.
system-view
2. Enable the DHCP server to always broadcast all responses.
dhcp server always-broadcast
By default, the DHCP server reads the broadcast flag to decide whether to broadcast or unicast
a response.
Configuring the DHCP server to ignore BOOTP requests
About configuring 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.
Procedure
1. Enter system view.
system-view
2. Configure the DHCP server to ignore BOOTP requests.
dhcp server bootp ignore
By default, the DHCP server processes BOOTP requests.
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