Cisco WS-C3560E-24PD-E User Manual

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Catalyst 3560 Switch Command Reference
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Chapter 2 Catalyst 3560 Switch Cisco IOS Commands
show ip arp inspection
Vlan DHCP Permits ACL Permits Source MAC Failures
---- ------------ ----------- -------------------
5 0 12 0
2000 0 0 0
Vlan Dest MAC Failures IP Validation Failures
---- ----------------- ----------------------
5 0 9
2000 0 0
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 Forwarded Dropped DHCP Drops ACL Drops
---- --------- ------- ---------- ---------
5 3 4618 4605 4
Vlan DHCP Permits ACL Permits Source MAC Failures
---- ------------ ----------- -------------------
5 0 12 0
Vlan Dest MAC Failures IP Validation Failures Invalid Protocol Data
---- ----------------- ---------------------- ---------------------
5 0 9 3
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 :Enabled
Destination Mac Validation :Enabled
IP Address Validation :Enabled
Vlan Configuration Operation ACL Match Static ACL
---- ------------- --------- --------- ----------
5 Enabled Active second No
Vlan ACL Logging DHCP Logging
---- ----------- ------------
5 Acl-Match All
Related Commands Command Description
arp access-list Defines an ARP ACL.
clear ip arp inspection log Clears the dynamic ARP inspection log buffer.
clear ip arp inspection statistics Clears the dynamic ARP inspection statistics.
ip arp inspection log-buffer Configures the dynamic ARP inspection logging buffer.
ip arp inspection vlan logging Controls the type of packets that are logged per VLAN.
show arp access-list Displays detailed information about ARP access lists.

Cisco WS-C3560E-24PD-E Specifications

General

Brand	Cisco
Model	WS-C3560E-24PD-E
Category	Switch
Language	English