Arp Restricted-Forwarding Enable - HP FlexNetwork 7500 Series Command Reference Manual

Views
System view
Predefined user roles
network-admin
mdc-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-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.
Usage guidelines
You can specify more than one object to be checked in one command line.
If no keyword is specified, the undo arp detection validate command disables ARP packet validity
check for all objects.
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 ip src-mac

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
mdc-admin
Examples
# Enable ARP restricted forwarding in VLAN 2.
<Sysname> system-view
[Sysname] vlan 2
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