Specifications

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Cisco Catalyst Blade Switch 3020 for HP Command Reference

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Chapter 2 Cisco Catalyst Blade Switch 3020 for HP Cisco IOS Commands

ip dhcp snooping information option format remote-id

Use the ip dhcp snooping information option format remote-id global configuration command on the

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.

stringASCII-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(25)SEF This command was introduced.