D-Link DXS-3600 Series Cli Reference Manual page 390

DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch CLI Reference Guide
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Default
By default, DHCP snooping is disabled on all VLANs.
Command Mode
Global Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
Use this command to globally enable DHCP snooping and use the ip dhcp snooping vlan command to
enable DHCP snooping for a VLAN. The DHCP snooping function snoops the DHCP packets arriving at
the untrusted interface on VLAN that is enabled for DHCP snooping. With this function, the DHCP
packets come from the untrusted interface can be validated and a DHCP binding database will be
constructed for the DHCP snooping enabled VLAN. The binding database provides IP and MAC binding
information that can be further used by the IP source guard and dynamic ARP inspection process.
Example
This example shows how to enable DHCP snooping on VLAN 10.
Switch# configure terminal
Switch(config)# ip dhcp snooping vlan 10
Switch(config)#
This example shows how to enable DHCP snooping on a range of VLANs.
Switch# configure terminal
Switch(config)# ip dhcp snooping vlan 10,15-18
Switch(config)#
24-14 show ip dhcp snooping
This command is used to display the DHCP snooping configuration.
show ip dhcp snooping
Parameters
None.
Default
None.
Command Mode
User EXEC or Any Configuration Mode.
Command Default Level
Level: 1.
interfaces from a previous range. No space is allowed before and after
the comma.
(Optional) Specifies a range of interfaces. No space is allowed before
and after the hyphen.
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