H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 169)

23-3
src-mac: Checks whether the sender MAC address of an ARP packet is identical to the source
MAC address in the Ethernet header. If they are identical, the packet is forwarded; otherwise, the
packet is discarded.
dst-mac: Checks the target MAC address of ARP replies. 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 both the source and destination IP addresses in an ARP packet. The all-zero, all-one or
multicast IP addresses are considered invalid and the corresponding packets are discarded. With
this object specified, the source and destination IP addresses of ARP replies, and the source IP
address of ARP requests are checked.
Configuring ARP Detection
If both the ARP detection based on specified objects and the ARP detection based on static IP Source
Guard binding entries/DHCP snooping entries/802.1X security entries/OUI MAC addresses are
enabled, the former one applies first, and then the latter applies.
Select Network > ARP Anti-Attack from the navigation tree to enter the default ARP Detection page
shown in Figure 23-2 .
Figure 23-2 ARP Detection configuration page
Table 23-1 describes the ARP Detection configuration items.