Cisco 350 Series Administration Guide

Security
IP Source Guard
Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4 357
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IP Source Guard Work Flow
To configure IP Source Guard:
STEP 1 Enable (DHCP Snooping) Properties page.
STEP 2 Define the VLANs on which DHCP Snooping is enabled in the (DHCP Snooping) Interface
Settings page.
STEP 3 Configure interfaces as trusted or untrusted in the (DHCP Snooping) Interface Settings page.
STEP 4 Enable IP Source Guard in the (IP Source Guard) Properties page.
STEP 5 Enable IP Source Guard on the untrusted interfaces as required in the (IP Source Guard)
Interface Settings page.
STEP 6 View entries to the Binding database in the (IP Source Guard) Binding Database page.
Properties
To enable IP Source Guard globally:
STEP 1 Click Security > IP Source Guard > Properties.
STEP 2 Select Enable to enable IP Source Guard globally.
STEP 3 Click Apply to enable IP Source Guard.
Interface Settings
If IP Source Guard is enabled on an untrusted port/LAG, DHCP packets, allowed by DHCP
Snooping, are transmitted. If source IP address filtering is enabled, packet transmission is
permitted as follows:
• IPv4 traffic — Only IPv4 traffic with a source IP address that is associated with the
specific port is permitted.
• Non IPv4 traffic — All non-IPv4 traffic is permitted.
See Interactions with Other Features for more information about enabling IP Source Guard on
interfaces.

Cisco 350 Series Specifications

General

Model	Cisco 350 Series
Category	Switch
Ports	8, 24, 48
PoE	Available on some models
Layer	Layer 2
Switching Capacity	Up to 104 Gbps
VLAN Support	Yes (up to 256 VLANs)
QoS	Yes
Management	Web, CLI, SNMP
Security Features	ACLs, 802.1X, Port Security
Jumbo Frame Support	Yes
Power Supply	Internal
Dimensions	Varies by model
Weight	Varies by model
Operating Temperature	0°C to 45°C (32°F to 113°F)
Storage Temperature	-20°C to 70°C (-4°F to 158°F)
Humidity	10% to 90% non-condensing
Port Type	Gigabit Ethernet, Fast Ethernet (depending on model)