Command Line Reference Guide

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Dell#
Secure DHCP Commands
The dynamic host configuration protocol (DHCP) as defined by RFC 2131 provides no authentication or
security mechanisms. Secure DHCP is a suite of features that protects networks that use dynamic address
allocation from spoofing and attacks.
clear ip dhcp snooping
Clear the DHCP binding table.
Syntax
clear ip dhcp snooping binding
Defaults none
Command
Modes
EXEC Privilege
Command
History
Version 8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Related
Commands
show ip dhcp snooping — displays the contents of the DHCP binding table.
ip dhcp relay
Enable Option 82.
Syntax
ip dhcp relay information-option [trust-downstream]
Parameters
trust-
downstream
Configure the system to trust Option 82 when it is received
from the previous-hop router.
Defaults Disabled.
Command
Modes
CONFIGURATION
Command
History
Version 8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Security
1201