Dell PowerConnect PC5524 User Manual

DHCP Snooping and ARP Inspection Commands 569
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CLI\files\DHCP_Snooping.fm
DELL CONFIDENTIAL – PRELIMINARY 5/15/12 - FOR PROOF ONLY
Syntax
ip dhcp snooping trust
no ip dhcp snooping trust
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 gigabitethernet port 1/0/ 5 as trusted for
DHCP Snooping.
Console(config)# interface gigabitethernet 1/0/5
Console(config-if)# ip dhcp snooping trust
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

Dell PowerConnect PC5524 Specifications

General

Brand	Dell
Model	PowerConnect PC5524
Category	Switch
Language	English