ip dhcp snooping
Enable DHCP Snooping globally.
Syntax
[no] ip dhcp snooping
Defaults
Disabled.
Command
Modes
CONFIGURATION
Command
History
Version 8.3.16.1
Introduced on the MXL 10/40GbE Switch IO Module.
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.
ip dhcp snooping database
Delay writing the binding table for a specified time.
Syntax
ip dhcp snooping database write-delay
minutes
Parameters
minutes
The range is from 5 to 21600.
Defaults
none
Command
Modes
CONFIGURATION
Command
History
Version 8.3.16.1
Introduced on the MXL 10/40GbE Switch IO Module.
ip dhcp snooping binding
Create a static entry in the DHCP binding table.
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.
1202
Security