Service Manual
Defaults Disabled
Command Modes CONFIGURATION
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.2.(0.0) Introduced on the S4810 and S4820T.
9.0.2.0 Introduced on the S6000.
8.3.11.1 Introduced on the Z9000.
8.3.1.0 Introduced on the E-Series.
8.2.1.0 Introduced on the C-Series and S-Series on Layer 2 interfaces.
7.8.1.0 Introduced on the C-Series and S-Series on Layer 3 interfaces.
Usage Information
When enabled, no learning takes place until you enable snooping on a VLAN. After disabling DHCP snooping, the
binding table deletes and Option 82, IP Source Guard, and Dynamic ARP Inspection are disabled.
Introduced in Dell Networking OS version 7.8.1.0, DHCP snooping was available for Layer 3 only and dependent on
DHCP Relay Agent (ip helper-address). Dell Networking OS version 8.2.1.0 extends DHCP Snooping to
Layer 2. You do not have to enable relay agent to snoop on Layer 2 interfaces.
ipv6 dhcp snooping
Enable DHCPv6 snooping globally for ipv6.
Syntax
[no] ipv6 dhcp snooping
To disable the snooping globally, use the no ipv6 dhcp snooping command.
Defaults Disabled
Command Modes CONFIGURATION
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S4810, S4820T, S6000, S6000-ON, and Z-Series.
Dynamic Host Conguration Protocol (DHCP) 563