Dell Force10 S55T FTOS Command Line Reference Guide for the S55 System FTOS 8. - Page 404

www.dell.com | support.dell.com Command History Related Commands Version 8.3.5.0 Version 8.3.1.0 Version 8.2.1.0 arp inspection Introduced on the S55. Introduced on E-Series. Introduced on C-Series and S-Series Enable Dynamic ARP Inspection on a VLAN. clear ip dhcp snooping c e s Clear the DHCP binding table. Syntax clear ip dhcp snooping binding Command Modes EXEC Privilege Default Command History None Version 8.3.5.0 Version 8.3.1.0 Version 7.8.1.0 Introduced on the S55. Introduced on E-Series. Introduced on C-Series and S-Series Related Commands show ip dhcp snooping Display the contents of the DHCP binding table. ip dhcp snooping c e s Enable DHCP Snooping globally. Syntax [no] ip dhcp snooping Command Modes Default CONFIGURATION Disabled Command History Version 8.3.5.0 Version 8.3.1.0 Version 8.2.1.0 Version 7.8.1.0 Introduced on the S55. Introduced on E-Series. Introduced on C-Series and S-Series for Layer 2 interfaces. Introduced on C-Series and S-Series on Layer 3 interfaces. 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 7.8.1.0, DHCP Snooping was available for Layer 3 only and dependent on DHCP Relay Agent (ip helper-address). FTOS version 8.2.1.0 extends DHCP Snooping to Layer 2, and you do not have to enable relay agent to snoop on Layer 2 interfaces. Related Commands ip dhcp snooping vlan Enable DHCP Snooping on one or more VLANs. 404 | Dynamic Host Configuration Protocol (DHCP)