Show ip dhcp snooping – Dell POWEREDGE M1000E User Manual

Page 564

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Cisco Catalyst Blade Switch 3120 for HP Command Reference

OL-12248-03

Chapter 2 Cisco Catalyst Blade Switch 3120 for HP 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

GigabitEthernet1/0/3 no 2000

GigabitEthernet1/0/4 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

12.2(40)EX1

This command was introduced.

Command

Description

show ip dhcp snooping binding

Displays the DHCP snooping binding information.

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