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Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
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Chapter 15 Configuring Access Control
Using VACLs in Your Network
Figure 15-8 Dynamic ARP Inspection Flow Chart
Note Only the ARP packets that are sent from an untrusted port are inspected. The ARP packets that are
received from a trusted port are forwarded without inspection (this process applies to both static and
dynamic ARP inspection). By default, the system configures the MSFC port as ARP inspection trusted.