Ip Dhcp Snooping Binding - Dell C9000 Series Reference Manual

Version
7.8.1.0
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.
DHCP snooping supports Layer 3 using DHCP Relay Agent (ip helper-address) and
Layer 2. You do not have to enable relay agent to snoop on Layer 2 interfaces.
Related ip dhcp snooping vlan
Commands

ip dhcp snooping binding

Create a static entry in the DHCP binding table.
C9000 Series
Syntax
[no] ip dhcp snooping binding mac address vlan-id vlan-id ip ip-
address interface type slot/port lease number
Parameters
mac address
vlan-id vlan-id
ip ip-address
interface type
slot/port
lease time
Defaults none
Description
Introduced on the C-Series and S-Series on Layer 3 interfaces.
— enables DHCP snooping on one or more VLANs.
Enter the keyword mac then the MAC address of the host to
which the server is leasing the IP address.
Enter the keywords vlan-id then the VLAN to which the host
belongs. The range is from 2 to 4094.
Enter the keyword ip then the IP address that the server is
leasing.
Enter the keyword interface then the type of interface to
which the host is connected:
• For a 10-Gigabit Ethernet interface, enter the keyword
tengigabitethernet.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE.
• For a port extender (PE) Gigabit Ethernet interface, enter
the keyword peGigE then the pe-id /stack-unit / port-id
information.
Enter the slot and port number of the interface.
Enter the keyword lease then the amount of time the IP
address are leased. The range is from 1 to 4294967295.
Dynamic Host Configuration Protocol (DHCP) 829