Ip Source-Guard - Cisco 300 Series Cli Manual
Stackable managed switches
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- Cli manual (899 pages) ,
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DHCP Snooping Commands
OL-32830-01 Command Line Interface Reference Guide
13.12 ip source-guard
Use the ip source-guard command in Configuration mode or Interface
Configuration mode to enable IP Source Guard globally on a device or in Interface
Configuration (Ethernet, Port-channel) mode to enable IP Source Guard on an
interface.
Use the no form of this command to disable IP Source Guard on the device or on
an interface.
Syntax
ip source-guard
no ip source-guard
Parameters
N/A
Default Configuration
IP Source Guard is disabled.
Command Mode
Interface (Ethernet, Port Channel) Configuration mode
User Guidelines
IP Source Guard must be enabled globally before enabling IP Source Guard on an
interface.
IP Source Guard is active only on DHCP snooping untrusted interfaces, and if at
least one of the interface VLANs are DHCP snooping enabled.
Example
The following example enables IP Source Guard on gi 1 4.
switchxxxxxx(config)#
switchxxxxxx(config-if)#
gi1
interface
4
ip source-guard
13
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