Dell Force10 S50-01-GE-48T FTOS 8.4.2.6 Command Line Reference Guide for the E - Page 469

Command History Version 8.3.1.0 Version 7.8.1.0 Introduced on E-Series. Introduced on C-Series and S-Series ip dhcp source-address-validation c e s Enable IP Source Guard. Syntax [no] ip dhcp source-address-validation [ipmac] Parameters ipmac Enable IP+MAC Source Address Validation (Not available on E-Series). Command Modes INTERFACE Default Disabled Command History Version 8.3.1.0 Version 8.2.1.0 Version 7.8.1.0 Introduced on E-Series. Added keyword ipmac. Introduced on C-Series and S-Series Usage You must allocate at least one FP block to ipmacacl before you can enable IP+MAC Source Address Information Validation. 1 Use the command cam-acl l2acl from CONFIGURATION mode 2 Save the running-config to the startup-config 3 Reload the system. ip dhcp snooping vlan c e s Enable DHCP Snooping on one or more VLANs. Syntax [no] ip dhcp snooping vlan name Parameters name Enter the name of a VLAN on which to enable DHCP Snooping. Command Modes CONFIGURATION Default Disabled Command History Version 8.3.1.0 Version 7.8.1.0 Introduced on E-Series. Introduced on C-Series and S-Series Usage When enabled the system begins creating entries in the binding table for the specified VLAN(s). Note Information that learning only happens if there is a trusted port in the VLAN. Related Commands ip dhcp snooping trust Configure an interface as trusted. Dynamic Host Configuration Protocol (DHCP) | 469