Dell S6000 FTOS 9.0(2.0) Command Line Reference Guide for the System - Page 366

www.dell.com | support.dell.com Default Disabled Command History Version 9.0.2.0 Version 8.3.11.1 Version 8.2.1.0 Related Commands arp inspection Introduced on then S6000. Introduced on the Z9000. Introduced on the S-Series Enable Dynamic ARP Inspection on a VLAN. clear ip dhcp snooping s z S6000 Clear the DHCP binding table. Syntax clear ip dhcp snooping binding Command Modes EXEC Privilege Default None Command History Version 9.0.2.0 Version 8.3.11.1 Version 8.2.1.0 Introduced on then S6000. Introduced on the Z9000. Introduced on the S-Series Related Commands show ip dhcp snooping Display the contents of the DHCP binding table. ip dhcp snooping s z S6000 Enable DHCP Snooping globally. Syntax [no] ip dhcp snooping Command Modes CONFIGURATION Default Disabled Command History Version 9.0.2.0 Version 8.3.11.1 Version 8.2.1.0 Introduced on then S6000. Introduced on the Z9000. Introduced on the S-Series Usage Information When enabled, no learning takes place until snooping is enabled on a VLAN. Upon disabling DHCP Snooping the binding table is deleted, and Option 82, IP Source Guard, and Dynamic ARP Inspection are disabled. Introduced in FTOS version 9.0.2.0, DHCP Snooping was available for Layer 3 only and dependent on DHCP Relay Agent (ip helper-address). FTOS version 9.0.2.0 extends DHCP Snooping to Layer 2, and you do not have to enable relay agent to snoop on Layer 2 interfaces. 366 | Dynamic Host Configuration Protocol (DHCP)