HP 1920 Series User Manual page 264

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Table 82 Configuration items
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Figure 226 ARP detection configuration page
Configure ARP detection as described in
Click Apply.
Item Description
Select VLANs on which ARP detection is to be enabled.
To add VLANs to the Enabled VLANs list, select one or multiple VLANs from the Disabled
VLAN Settings VLANs list and click the << button.
To remove VLANs from the Enabled VLANs list, select one or multiple VLANs from the list
and click the >> button.
Select trusted ports and untrusted ports.
To add ports to the Trusted Ports list, select one or multiple ports from the Untrusted Ports list
Trusted Ports and click the << button.
To remove ports from the Trusted Ports list, select one or multiple ports from the list and click
the >> button.
Select ARP packet validity check modes:
•
Discard the ARP packet whose sender MAC address is different from the source MAC
address in the Ethernet header.
•
Discard the ARP packet whose target MAC address is all 0s, all 1s, or inconsistent with
the destination MAC address in the Ethernet header.
ARP Packet
•
Discard the ARP request whose sender IP address is all 1s or a multicast address, and
Validity Check
discard the ARP reply whose sender and target IP addresses are all 1s or multicast
addresses.
If none is selected, the system does not check the validity of ARP packets.
If both ARP packet validity check and user validity check are enabled, the system performs
the former first, and then the latter.
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Table 82.
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