Dell POWEREDGE M1000E User Manual

Page 243

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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Command Reference

OL-13271-03

Chapter 2 Cisco Catalyst Blade Switch 3130 and 3032 for Dell Cisco IOS Commands

ip dhcp snooping information option format remote-id

ip dhcp snooping information option format remote-id

Use the ip dhcp snooping information option format remote-id global configuration command on the
switch stack or on a standalone switch to configure the option-82 remote-ID suboption. Use the no form
of this command to configure the default remote-ID suboption.

ip dhcp snooping information option format remote-id [string ASCII-string | hostname]

no ip dhcp snooping information option format remote-id

Syntax Description

Defaults

The switch MAC address is the remote ID.

Command Modes

Global configuration

Command History

Usage Guidelines

You must globally enable DHCP snooping by using the ip dhcp snooping global configuration
command for any DHCP snooping configuration to take effect.

When the option-82 feature is enabled, the default remote-ID suboption is the switch MAC address. This
command allows you to configure either the switch hostname or a string of up to 63 ASCII characters
(but no spaces) to be the remote ID.

Note

If the hostname exceeds 63 characters, it will be truncated to 63 characters in the remote-ID
configuration.

Examples

This example shows how to configure the option- 82 remote-ID suboption:

Switch(config)# ip dhcp snooping information option format remote-id hostname

You can verify your settings by entering the show ip dhcp snooping user EXEC command.

Related Commands

string ASCII-string

Specify a remote ID, using from 1 to 63 ASCII characters (no
spaces).

hostname

Specify the switch hostname as the remote ID.

Release

Modification

12.2(40)EX1

This command was introduced.

Command

Description

ip dhcp snooping vlan information
option format-type circuit-id string

Configures the option-82 circuit-ID suboption.

show ip dhcp snooping

Displays the DHCP snooping configuration.

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