Arp Restricted-Forwarding Enable - HP 5920 Command Reference Manual

Views
System view
Predefined user roles
network-admin
Parameters
dst-mac: Checks the target MAC address of ARP responses. If the target MAC address is all-zero, all-one,
or inconsistent with the destination MAC address in the Ethernet header, the packet is considered invalid
and discarded.
ip: Checks the sender and target IP addresses of ARP replies, and the sender IP address of ARP requests.
All-zero, all-one, or multicast IP addresses are considered invalid and the corresponding packets are
discarded.
src-mac: Checks whether the sender MAC address in the message body is identical to the source MAC
address in the Ethernet header. If they are identical, the packet is forwarded. Otherwise, the packet is
discarded.
Examples
# Enable ARP packet validity check by checking the MAC addresses and IP addresses of ARP packets.
<Sysname> system-view
[Sysname] arp detection validate dst-mac src-mac ip

arp restricted-forwarding enable

Use arp restricted-forwarding enable to enable ARP restricted forwarding.
Use undo arp restricted-forwarding enable to disable ARP restricted forwarding.
Syntax
arp restricted-forwarding enable
undo arp restricted-forwarding enable
Default
ARP restricted forwarding is disabled.
Views
VLAN view
Predefined user roles
network-admin
Examples
# Enable ARP restricted forwarding in VLAN 2.
<Sysname> system-view
[Sysname] vlan 2
[Sysname-vlan2] arp restricted-forwarding enable
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