D-Link xStack Reference Manual page 193

xStack® DES-3200 Series Layer 2 Ethernet Managed Switch WEB UI Reference Guide
Click Apply to display the following Access Rule List window:
Figure 6 - 70. Access Rule List window for Packet Content example
To view the configurations for a previously configured rule, click on the corresponding Show Details button, which will
display the following Access Rule Detail Information window:
Figure 6 - 71. Access Rule Detail Information window for Packet Content example
NOTE: Address Resolution Protocol (ARP) is the standard for finding a host's hardware address
(MAC Address). However, ARP is vulnerable as it can be easily spoofed and utilized to attack a
LAN. For a more detailed explanation on how ARP works and how to employ D-Link's advanced
unique Packet Content ACL to prevent ARP spoofing attack, please see the section titled ARP
Spoofing Prevention Settings on page 58.
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