Catalyst 3750-E and 3560-E Switch Cisco IOS ... - DNIP . NET

Chapter 2Catalyst 3750-E and 3560-E Switch Cisco IOS Commandsip dhcp snooping information option format remote-idip dhcp snooping information option format remote-idUse the ip dhcp snooping information option format remote-id global configuration command on theswitch stack or on a standalone switch to configure the option-82 remote-ID suboption. Use the no formof 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-idSyntax Descriptionstring ASCII-stringhostnameSpecify a remote ID, using from 1 to 63 ASCII characters (nospaces).Specify the switch hostname as the remote ID.DefaultsThe switch MAC address is the remote ID.Command ModesGlobal configurationCommand HistoryRelease12.2(35)SE2ModificationThis command was introduced.Usage GuidelinesYou must globally enable DHCP snooping by using the ip dhcp snooping global configurationcommand 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. Thiscommand 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.NoteIf the hostname exceeds 63 characters, it will be truncated to 63 characters in the remote-IDconfiguration.ExamplesThis example shows how to configure the option- 82 remote-ID suboption:Switch(config)# ip dhcp snooping information option format remote-id hostnameYou can verify your settings by entering the show ip dhcp snooping user EXEC command.Related CommandsCommandDescriptionip dhcp snooping vlan information Configures the option-82 circuit-ID suboption.option format-type circuit-id stringshow ip dhcp snoopingDisplays the DHCP snooping configuration.OL-9776-08Catalyst 3750-E and 3560-E Switch Command Reference2-241