Applying An Address Pool On An Interface; Configuring Ip Address Conflict Detection; Enabling Handling Of Option 82 - HP 6125XLG Layer 3-Ip Services Configuration Manual

Applying an address pool on an interface

Perform this task to apply a DHCP address pool on an interface. Upon receiving a DHCP request from the
interface, the DHCP server assigns the statically bound IP address and configuration parameters from the
address pool that contains the static binding. If no static binding is found for the requesting client, the
DHCP server selects the applied address pool for address and configuration parameter allocation.
To apply an address pool on an interface:
Step
1. Enter system view.
2. Enter interface view.
3. Apply an address pool on the
interface.

Configuring IP address conflict detection

Before assigning an IP address, the DHCP server pings that IP address.
• If the server receives a response within the specified period, it selects and pings another IP address.
If it receives no response, the server continues to ping the IP address until a specific number of ping
•
packets are sent. If still no response is received, the server assigns the IP address to the requesting
client. The DHCP client uses gratuitous ARP to perform IP address conflict detection.
To configure IP address conflict detection:
Step
1. Enter system view.
2. (Optional.) Specify the
maximum number of ping
packets to be sent for conflict
detection.
3. (Optional.) Configure the ping
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.
Command
system-view
interface interface-type
interface-number
dhcp server apply ip-pool
pool-name
Command
system-view
dhcp server ping packets number
dhcp server ping timeout
milliseconds
44
Remarks
N/A
N/A
By default, no address pool is applied
on an interface.
If the applied address pool does not
exist, the DHCP server fails to perform
dynamic address allocation.
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.