Users Guide

Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the C-Series and S-Series.
Related
Commands
show ip dhcp snooping — displays the contents of the DHCP binding table.
ip dhcp snooping
Enable DHCP Snooping globally.
C9000 Series
Syntax
[no] ip dhcp snooping
Defaults Disabled.
Command Modes CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the C-Series and S-Series.
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.
Related
Commands
ip dhcp snooping vlan — enables DHCP Snooping on one or more VLANs.
Security 1497