Ip Dhcp Snooping Information Option Allowed-Untrusted - Cisco 300 Series Cli Manual
Small business 300 series managed switches
command line interface guide release 1.3
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DHCP Snooping and ARP Inspection Commands
78-21075-01 Command Line Interface Reference Guide
no ip dhcp snooping trust
Parameters
N/A
Default Configuration
The interface is untrusted.
Command Mode
Interface Configuration (Ethernet, Port-channel) mode
User Guidelines
Configure as trusted the ports that are connected to a DHCP server or to other
switches or routers. Configure the ports that are connected to DHCP clients as
untrusted.
Example
The following example configures gi5 as trusted for DHCP Snooping.
switchxxxxxx(config)#
switchxxxxxx(config-if)#
42.4
ip dhcp snooping information option
allowed-untrusted
Use the ip dhcp snooping information option allowed-untrusted Global
Configuration mode command to allow a device to accept DHCP packets with
option-82 information from an untrusted port. Use the no form of this command to
drop these packets from an untrusted port.
Syntax
ip dhcp snooping information option allowed-untrusted
no ip dhcp snooping information option allowed-untrusted
Parameters
N/A
interface gi5
ip dhcp snooping trust
42
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