Reference Guide

Dynamic Host Configuration Protocol (DHCP) | 511
Syntax
ip dhcp snooping database renew
Command Modes
EXEC
EXEC Privilege
Default
None
Command
History
ip dhcp snooping trust
c e s
Configure an interface as trusted.
Syntax
[no] ip dhcp snooping trust
Command Modes
INTERFACE
Default
Untrusted
Command
History
ip dhcp source-address-validation
c e s
Enable IP Source Guard.
Syntax [no] ip dhcp source-address-validation [ipmac]
Parameters
Command Modes
INTERFACE
Default
Disabled
Version 8.3.19.0 Introduced on S4820T
Version 8.3.7.0 Introduced on S4810
Version 8.3.1.0 Introduced on E-Series.
Version 7.8.1.0 Introduced on C-Series and S-Series
Version 8.3.19.0 Introduced on S4820T
Version 8.3.7.0 Introduced on S4810
Version 8.3.1.0 Introduced on E-Series.
Version 7.8.1.0 Introduced on C-Series and S-Series
ipmac
Enable IP+MAC Source Address Validation (Not available on E-Series).