Specifications

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Catalyst 4500 Se ries S wit ch C is co IO S C om mand R efer ence —Re lease I OS XE 3 .3.0 XO(1 5.1 (1)XO)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
show ip arp inspection
show ip arp inspection
To show the status of dynamic ARP inspection for a specific range of VLANs, use the show ip arp
inspection command.
show ip arp insp ection {[statistics] vlan vlan-ran ge | interfaces [interface-name]}
Syntax Description
Defaults This command has no default settings.
Command Modes Privileged EXEC mode
Examples This example shows how to display the statistics of packets that have been processed by DAI for
VLAN 3:
Switch# show ip arp inspection statistics vlan 3
Vlan Forwarded Dropped DHCP Drops ACL Drops
---- --------- ------- ---------- ----------
3 31753 102407 102407 0
Vlan DHCP Permits ACL Permits Source MAC Failures
---- ------------ ----------- -------------------
3 31753 0 0
Vlan Dest MAC Failures IP Validation Failures
---- ----------------- ----------------------
3 0 0
Switch#
This example shows how to display the statistics of packets that have been processed by DAI for all
active VL ANs:
Switch# show ip arp inspection statistics
Vlan Forwarded Dropped DHCP Drops ACL Drops
---- --------- ------- ---------- ----------
1 0 0 0 0
2 0 0 0 0
3 68322 220356 220356 0
statistics (Optional) Displays statistics for the following types of packets that
have been process ed by th is feat ure: f orwarded, dropped, MAC
validation failure, and IP validation failure.
vlan vlan-range (Optional) When used with the statistics keyword, displays the
statistics for the selected range of VLANs. Without the statistics
keyword, displays the configura tion and operating state of DA I for the
selected range of VLANs.
interfa ces interfac e-name (Optional) Displays the trust state and the rate limit of ARP packets for
the provided interface. When the interface name is not specified, the
command displays the trust state and rate limit for all applicable
interfaces in the system.