Cisco SG220-26 Administration Guide

Configuring Security
Configuring Dynamic ARP Inspection
Cisco 220 Series Smart Switches Administration Guide Release 1.1.0.x 232
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the IP address-VLAN match. If the entry exists in the DHCP Snooping
database, the packet passes through the interface.
• If the packet’s IP address is not listed in the ARP Inspection list or the DHCP
Snooping database, the switch rejects the packet.
To define ARP Inspection on VLANs:
STEP 1 Click Security > ARP Inspection > VLAN Settings.
STEP 2 Select the VLANs from the Available VLANs column and add them to the Enabled
VLANs column.
STEP 3 Click Apply. ARP Inspection settings are applied on the selected VLANs, and the
Running Configuration is updated.

Cisco SG220-26 Specifications

General

Model	SG220-26
Category	Switch
Ports	24 x 10/100/1000 + 2 x Gigabit SFP
Switching Capacity	52 Gbps
Forwarding Rate	38.69 Mpps
Layer	Layer 2
PoE	No
Mounting	Rack-mountable
MAC Address Table Size	8K entries
Power Supply	Internal
Management	Web-based
Jumbo Frame Support	9216 bytes
Operating Temperature	0°C to 40°C (32° to 104°F)
Storage Temperature	-20°C to 70°C (-4° to 158°F)
Humidity	10% to 90%, non-condensing
Standards Compliance	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3z, IEEE 802.3x, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p