Dynamic Host Configuration Protocol (DHCP) | 199
arp inspection-trust
Specify a port as trusted so that ARP frames are not validated against the binding table.
Syntax
arp inspection-trust
Command Modes
INTERFACE
INTERFACE PORT-CHANNEL
Default
Disabled
Command
History
Related
Commands
clear ip dhcp snooping
Clear the DHCP binding table.
Syntax
clear ip dhcp snooping binding
Command Modes
EXEC Privilege
Default
none
Command
History
Related
Commands
ip dhcp snooping
Enable DHCP snooping globally.
Syntax
[no] ip dhcp snooping
Command Modes
CONFIGURATION
Default
Disabled
Command
History
Usage
Information
When enabled, no learning takes place until you enable snooping on a VLAN. AFter disabling DHCP 
snooping, the binding table is deleted, and Option 82, IP Source Guard, and Dynamic ARP Inspection 
are disabled.
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module
arp inspection Enables Dynamic ARP Inspection on a VLAN.
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module
show ip dhcp snooping Displays the contents of the DHCP binding table.
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module