Command Line Reference Guide

Version 9.2.
(0.0)
Introduced on the S4810 and S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.1.0 Introduced on the E-Series.
Version 8.2.1.0 Introduced on the C-Series and S-Series on Layer 2
interfaces.
Version 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.
ip dhcp snooping binding
Create a static entry in the DHCP binding table.
S6000
Syntax
[no] ip dhcp snooping binding mac address vlan-id vlan-id ip
ip-address interface type slot/port lease number
Parameters
mac address Enter the keyword mac then the MAC address of the host to
which the server is leasing the IP address.
vlan-id vlan-id Enter the keywords vlan-id then the VLAN to which the
host belongs. The range is from 2 to 4094.
ip ip-address Enter the keyword ip then the IP address that the server is
leasing.
interface type Enter the keyword interface then the type of interface to
which the host is connected:
• For an 10/100 Ethernet interface, enter the keyword
fastethernet.
• For a Gigabit Ethernet interface, enter the keyword
gigabitethernet.
• For a Ten-Gigabit Ethernet interface, enter the keyword
tengigabitethernet.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE.
slot/port Enter the slot and port number of the interface.
542
Dynamic Host Configuration Protocol (DHCP)