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Catalyst 3750 Switch Command Reference
OL-8552-07
Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
show ip dhcp snooping
show ip dhcp snooping
Use the
show ip dhcp snooping
user EXEC command to display the DHCP snooping configuration.
show ip dhcp snooping
[
|
{
begin
|
exclude
|
include
}
expression
]
Syntax Description
Command Modes
User EXEC
Command History
Usage Guidelines
Expressions are case sensitive. For example, if you enter
| exclude output
, the lines that contain
output
do not appear, but the lines that contain
Output
appear.
This command displays only the results of global configuration. Therefore, in this example, the circuit
ID suboption appears in its default format of
vlan
-
mod
-
port
, even if a string is configured for the circuit
ID.
Examples
This is an example of output from the
show ip dhcp snooping
command:
Switch>
show ip dhcp snooping
Switch DHCP snooping is enabled
DHCP snooping is configured on following VLANs:
40-42
Insertion of option 82 is enabled
circuit-id format: vlan-mod-port
remote-id format: string
Option 82 on untrusted port is allowed
Verification of hwaddr field is enabled
Interface Trusted Rate limit (pps)
------------------------ ------- ----------------
GigabitEthernet1/0/1 yes unlimited
GigabitEthernet1/0/2 yes unlimited
GigabitEthernet2/0/3 no 2000
GigabitEthernet2/0/4 yes unlimited
Related Commands
| begin
(Optional) Display begins with the line that matches the
expression
.
| exclude
(Optional) Display excludes lines that match the
expression
.
| include
(Optional) Display includes lines that match the specified
expression
.
expression
Expression in the output to use as a reference point.
Release
Modification
12.1(19)EA1
This command was introduced.
12.2(25)SEE
The command output was updated to show the global suboption
configuration.
Command
Description
Displays the DHCP snooping binding information.
