Cisco Catalyst 3030 Command Reference Manual page 351

Chapter 2 Cisco Catalyst Blade Switch 3030 Cisco IOS Commands
This example shows how to display the DHCP snooping binding entries for a specific IP address:
Switch> show ip dhcp snooping binding 10.1.2.150
MacAddress
------------------
01:02:03:04:05:06
Total number of bindings: 1
This example shows how to display the DHCP snooping binding entries for a specific MAC address:
Switch> show ip dhcp snooping binding 0102.0304.0506
MacAddress
------------------
01:02:03:04:05:06
Total number of bindings: 1
This example shows how to display the DHCP snooping binding entries on a port:
Switch> show ip dhcp snooping binding interface gigabitethernet0/2
MacAddress
------------------
00:30:94:C2:EF:35
Total number of bindings: 1
This example shows how to display the DHCP snooping binding entries on VLAN 20:
Switch> show ip dhcp snooping binding vlan 20
MacAddress
------------------
01:02:03:04:05:06
00:00:00:00:00:02
Total number of bindings: 2
Table 2-21
Table 2-21
Field
MacAddress
IpAddress
Lease(sec)
Type
VLAN
Interface
Total number of bindings
Related Commands Command
show ip dhcp snooping
78-17262-01
IpAddress
---------------
10.1.2.150
IpAddress
---------------
10.1.2.150
IpAddress
---------------
10.1.2.151
IpAddress
---------------
10.1.2.150
10.1.2.151
describes the fields in the show ip dhcp snooping binding command output:
show ip dhcp snooping binding Command Output
Description
Client hardware MAC address
Client IP address assigned from the DHCP server
Remaining lease time for the IP address
Binding type
VLAN number of the client interface
Interface that connects to the DHCP client host
Total number of bindings configured on the switch
Note
Lease(sec) Type
---------- -------------
9810 dhcp-snooping
Lease(sec) Type
---------- -------------
9788 dhcp-snooping
Lease(sec) Type
---------- -------------
290 dhcp-snooping
Lease(sec) Type
---------- -------------
9747 dhcp-snooping
65 dhcp-snooping
The command output might not show the total number of
bindings. For example, if 200 bindings are configured on the
switch and you stop the display before all the bindings appear, the
total number does not change.
Description
Displays the DHCP snooping configuration.
Cisco Catalyst Blade Switch 3030 Command Reference
show ip dhcp snooping binding
VLAN Interface
---- --------------------
20 GigabitEthernet0/1
VLAN Interface
---- --------------------
20 GigabitEthernet0/2
VLAN Interface
---- --------------------
20 GigabitEthernet0/2
VLAN Interface
---- --------------------
20 GigabitEthernet0/1
20 GigabitEthernet0/2
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