Syntax
dhcp-snooping
undo dhcp-snooping
View
System view
Parameter
None
Description
Use dhcp-snooping command to enable the
DHCP-snooping function for a switch.
Use the undo dhcp-snooping command
to disable the DHCP-snooping function.
By default, the DHCP-snooping function is
disabled.
Related command: display dhcp-snooping.
Example
# Enable the DHCP-snooping function.
<H3C> system-view
System View: return to User View with
Ctrl+Z
[H3C] dhcp-snooping
Syntax
display dhcp-snooping [ unit unit-id ]
View
Any view
Parameter
unit unit-id: Displays the DHCP-snooping information on other devices in cluster
when the switch is in cluster. unit-id indicates the number of the
device whose DHCP-snooping information needs to be viewed.
Description
Use the display dhcp-snooping
command to display the correspondence between user IP addresses and MAC addresses
recorded by the DHCP snooping function.
Related command: dhcp-snooping.
Example
# Display the correspondence between user IP addresses and MAC addresses
recorded by the DHCP snooping function.
<H3C> display dhcp-snooping
DHCP-Snooping is enabled.
Type : D--Dynamic , S--Static
Unit ID : 1
Type IP Address MAC Address
Lease VLAN Interface
==== =============== ===============
========= ==== =================
D 192.168.0.4 0010-5ce6-067c
N/A 1 Ethernet1/0/1
--- 1 dhcp-snooping item(s) of unit
1 found ---
Table 1-1 Description on the fields of
the display dhcp snooping command
|
Field
|
Description
|
|
Type
|
Binding type:D——Dynamic Binding;S——Static
Binding
|
|
Unit ID
|
Unit ID
|
|
IP Address
|
IP address assigned to the DHCP client
|
|
MAC Address
|
MAC address of the DHCP client
|
|
Lease
|
Lease period of the IP address in seconds
|
|
VLAN
|
VLAN where the port connecting the DHCP
client resides
|
|
Interface
|
Port to which the DHCP client is
connected
|
