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Chapter 22
Configuring Dynamic ARP Inspection
To clear or display dynamic ARP inspection statistics, use the privileged EXEC commands in
Table
Table 22-3 Commands for Clearing or Displaying Dynamic ARP Inspection Statistics
Command
clear ip arp inspection statistics
show ip arp inspection statistics [vlan
vlan-range]
For the show ip arp inspection statistics command, the switch increments the number of forwarded
packets for each ARP request and response packet on a trusted dynamic ARP inspection port. The switch
increments the number of ACL or DHCP permitted packets for each packet that is denied by source
MAC, destination MAC, or IP validation checks, and the switch increments the appropriate failure count.
To clear or display dynamic ARP inspection logging information, use the privileged EXEC commands
in
Table
Table 22-4 Commands for Clearing or Displaying Dynamic ARP Inspection Logging Information
Command
clear ip arp inspection log
show ip arp inspection log
For more information about these commands, refer to the command reference for this release.
78-16180-02
22-3:
22-4:
Displaying Dynamic ARP Inspection Information
Description
Clears dynamic ARP inspection statistics.
Displays statistics for forwarded, dropped, MAC
validation failure, IP validation failure, ACL
permitted and denied, and DHCP permitted and
denied packets for all VLANs configured on the
switch, for a specified VLAN, or for a range of
VLANs.
Description
Clears the dynamic ARP inspection log buffer.
Displays the configuration and contents of the dynamic ARP
inspection log buffer.
Catalyst 3750 Switch Software Configuration Guide
22-15
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