Cisco Catalyst 3550 Command Reference Manual page 411

Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
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.
This is an example of output from the show ip arp inspection statistics vlan 5 command. It shows
statistics for packets that have been processed by dynamic ARP for VLAN 5.
Switch# show ip arp inspection statistics vlan 5
Vlan
----
Vlan
----
Vlan
----
This is an example of output from the show ip arp inspection vlan 5 command. It shows the
configuration and the operating state of dynamic ARP inspection for VLAN 5.
Switch# show ip arp inspection vlan 5
Source Mac Validation
Destination Mac Validation :Enabled
IP Address Validation
Vlan
----
Vlan
----
Related Commands Command
arp access-list
clear ip arp inspection log
clear ip arp inspection statistics
ip arp inspection log-buffer
ip arp inspection vlan logging
show arp access-list
OL-8566-01
Forwarded
---------
5 3
DHCP Permits ACL Permits
------------ -----------
5 0
Dest MAC Failures
-----------------
5 0
Configuration
-------------
5 Enabled
ACL Logging
-----------
5 Acl-Match
Dropped DHCP Drops
------- ----------
4618 4605
Source MAC Failures
-------------------
12
IP Validation Failures
----------------------
9
:Enabled
:Enabled
Operation ACL Match
--------- ---------
Active second
DHCP Logging
------------
All
Description
Defines an ARP ACL.
Clears the dynamic ARP inspection log buffer.
Clears the dynamic ARP inspection statistics.
Configures the dynamic ARP inspection logging buffer.
Controls the type of packets that are logged per VLAN.
Displays detailed information about ARP access lists.
Catalyst 3550 Multilayer Switch Command Reference
show ip arp inspection
ACL Drops
---------
4
0
Invalid Protocol Data
---------------------
3
Static ACL
----------
No
2-385