Cisco Catalyst 2960 Series User Manual

SUMMARY STEPS
1.
enable
2.
show cdp neighbors
3.
configure terminal
4.
ip arp inspection vlan vlan-range
5.
Interfaceinterface-id
6.
ip arp inspection trust
7.
end
8.
show ip arp inspection interfaces
9.
show ip arp inspection vlan vlan-range
10.
show ip dhcp snooping binding
11.
show ip arp inspection statistics vlan vlan-range
12.
configure terminal
13.
configure terminal
DETAILED STEPS
PurposeCommand or Action
Enables privileged EXEC mode. Enter your password if prompted.enable
Step 1
Example:
Switch> enable
Verify the connection between the switches.show cdp neighbors
Example:
Switch(config-if)#show cdp neighbors
Step 2
Enters the global configuration mode.configure terminal
Example:
Switch# configure terminal
Step 3
Enable dynamic ARP inspection on a per-VLAN basis. By default,
dynamic ARP inspection is disabled on all VLANs. For vlan-range,
ip arp inspection vlan vlan-range
Example:
Switch(config)# ip arp inspection vlan 1
Step 4
specify a single VLAN identified by VLAN ID number, a range of
VLANs separated by a hyphen, or a series of VLANs separated by
a comma. The range is 1 to 4094. Specify the same VLAN ID for
both switches.
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
1309
Configuring Dynamic ARP Inspection in DHCP Environments

Cisco Catalyst 2960 Series Specifications

General

Layer	Layer 2
Power over Ethernet (PoE)	Available on some models
RAM	128 MB
Flash Memory	32 MB
MAC Address Table Size	8000
Operating Temperature	0°C to 45°C (32 to 113°F)
Ports	24 or 48 x 10/100/1000