display dhcp snooping user-bind

Function

The display dhcp snooping user-bind command displays information about the DHCP snooping dynamic binding table.

Format

display dhcp snooping user-bind { { interface interface-type interface-number | ip-address ip-address | mac-address mac-address | vlan vlan-id | bridge-domain bd-id } ^* | all } [ verbose ]

Only the S5720-HI, S5730-HI, S6720-HI, S6730-H, S6730S-H, S6730-S, S6730S-S, S5732-H, S5731-S, S5731S-S, S5731S-H, S5731-H, S6720-EI, and S6720S-EI support the bridge-domain parameter.

Parameters

Parameter	Description	Value
interface interface-type interface-number	Displays binding entries mapping a specified interface. In the preceding information: interface-type specifies the interface type. interface-number specifies the interface number.	-
ip-address ip-address	Displays binding entries mapping a specified IP address.	The value is in dotted decimal notation.
mac-address mac-address	Displays binding entries mapping a specified MAC address.	The value is in H-H-H format. Each H is a hexadecimal number of 4 digits.
vlan vlan-id	Displays binding entries mapping a specified VLAN ID.	The value is an integer in the range from 1 to 4094.
bridge-domain bd-id	Displays DHCP snooping running information in a specified broadcast BD.	The BD ID must already exist.
all	Displays all entries in the binding table.	-
verbose	Displays detailed information about the binding table.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

After DHCP snooping is enabled, the device generates a DHCP snooping binding table. A binding entry contains the MAC address, IP address, interface connecting to the DHCP client, and ID VLAN to which the interface belongs. You can run the display dhcp snooping user-bind command to view the DHCP snooping binding table.

Example

# Display information about the DHCP snooping binding table.

Display information about all binding entries.

<HUAWEI> display dhcp snooping user-bind all
DHCP Dynamic Bind-table:
Flags:O - outer vlan ,I - inner vlan ,P - Vlan-mapping  
IP Address       MAC Address     VSI/VLAN(O/I/P)/(BD-VLAN) Interface      Lease            
----------------------------------------------------------------------------------------- 
10.1.28.141      78ac-d4b5-b858  10                        GE0/0/1       2008.10.17-07:31 
----------------------------------------------------------------------------------------- 
Print count:           1          Total count:           1

Display detailed information about the DHCP snooping binding table by specifying the verbose parameter.

<HUAWEI> display dhcp snooping user-bind all verbose
DHCP Dynamic Bind-table:                                                        
Flags:O - outer vlan ,I - inner vlan ,P - Vlan-mapping
--------------------------------------------------------------------------------
 IP Address    : 10.10.21.254                                                     
 MAC Address   : 0200-0000-00e8
 Bridge-domain : 1
 VSI           : --                                                               
 VLAN(O/I/P)   : 10  /--  /--                                                     
 Interface     : GE0/0/1                               
 Renew time   : 2019.03.07-11:32                                                 
 Expire time  : 2019.03.08-11:32                                                 
 IPSG Status  : IPv4 effective slot: <3>
 Gateway      : 10.10.21.1                                                       
 Server-ip    : 10.10.21.1
 Option12     : Tesgine2000
 Option55     : 1 15 3 6 44 46 47 43 77    
 Option60     : DEC 
 OptionList   : 12 50 53 54 55 60 61 255     
--------------------------------------------------------------------------------
Print count:           1          Total count:           1

**Table 1** Description of the **display dhcp snooping user-bind** command output
Item	Description
DHCP Dynamic Bind-table	DHCP snooping dynamic binding table.
Flags:O - outer vlan ,I - inner vlan ,P - Vlan-mapping	O indicates the outer VLAN ID; I indicates the inner VLAN ID; P indicates the mapped VLAN ID.
IP Address	User IP address.
MAC Address	User MAC address.
VSI	Name of the VPN instance to which the online user belongs to.
VLAN (O/I/P)	Outer VLAN ID, inner VLAN ID, or mapped VLAN ID of the online user.
(BD-VLAN)	BD and the VLAN to which the BD is bound.
Bridge-domain	Broadcast domain.
Interface	Interface through which a user goes online.
Renew time	Entry update time.
Expire time	Aging time of entries.
IPSG Status	IPv4 effective indicates that IPv4 packet check takes effect. slot: <3> indicates that the slot ID is 3.
Gateway	Gateway IP address.
Server-ip	IP addresses of the DHCP server.
Option12	DHCP Option 12 information carried by a user packet.
Option55	DHCP Option 55 information carried by a user packet.
Option60	DHCP Option 60 information carried by a user packet.
OptionList	DHCP Option information carried by a user packet.