Quick Reference Guide

42 Command Groups
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DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
Configuration and Image Files Commands
DHCP Snooping Commands
Command Group Description Access Mode
copy Copies files from a source to a destination. Privileged EXEC
delete Deletes a file from a Flash memory device. Privileged EXEC
delete startup-config Deletes the startup-config file. Privileged EXEC
dir Displays a list of files on a flash file system. Privileged EXEC
more Displays a file. Privileged EXEC
rename Renames a file. Privileged EXEC
boot system Specifies the system image that the device loads at
startup.
Privileged EXEC
show running-config Displays the contents of the currently running
configuration file.
Privileged EXEC
show startup-config Displays the startup configuration file contents. Privileged EXEC
show bootvar Displays the active system image file that the device
loads at startup.
Privileged EXEC
Command Group Description Access Mode
ip dhcp snooping Globally enables DHCP snooping Global
Configuration
ip dhcp snooping vlan Enables DHCP snooping on a VLAN. Global
Configuration
ip dhcp snooping trust Configures a port as trusted for DHCP snooping
purposes.
Interface
Configuration
ip dhcp snooping
information option
allowed-untrusted
Configures a switch to accept DHCP packets with
option-82 information from an untrusted port.
Global
Configuration
ip dhcp snooping verify Configures a switch to accept DHCP packets with
option-82 information from an untrusted port.
Global
Configuration
ip dhcp snooping database Configures the DHCP snooping binding file. Global
Configuration
ip dhcp snooping database
update-freq
Configures the update frequency of the DHCP
snooping binding file.
Global
Configuration