Configuring Arp Quick Update; Enabling Natural Mask Support For Arp Requests - HP 10500 Series Configuration Manual

To enable dynamic ARP entry check:
Step
1. Enter system view.
2. Enable dynamic ARP entry
check.

Configuring ARP quick update

HP recommends enabling ARP quick update in WLANs only.
As shown in
between its MAC address and outbound interface on the switch. If the switch does not update its ARP
table immediately after the outbound interface changes, it may fail to communicate with the laptop.
Figure 3 ARP quick update application scenario
With ARP quick update enabled, the switch updates the corresponding ARP entry immediately after the
change of the mapping between a MAC address and an outbound interface to ensure nonstop data
forwarding.
To enable ARP quick update:
Step
1. Enter system view.
2. Enable ARP quick
update.

Enabling natural mask support for ARP requests

This feature enables the device to learn the sender IP and MAC addresses in a received ARP request
whose sender IP address is on the same classful network as but a different subnet from the IP address of
the receiving interface. A classful network refers to a class A, B, or C network.
For example, VLAN-interface 10 with IP address 10.10.10.5/24 receives an ARP request from
10.1 1.1 1.1/8. Because the subnet address calculated by the AND operation of 10.1 1.1 1.1 and the 24-bit
Command
system-view
arp check enable
Figure 3, the laptop frequently roams between AP 1 and AP 2. This affects the mapping
Command
system-view
mac-address station-move
quick-notify enable
Remarks
N/A
Optional.
Enabled by default.
Remarks
N/A
Optional.
Disabled by default.
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