Cisco Systems 32369 client-identifier unique-identifier no client-identifier, Syntax Description

Command Reference

client-identifier

To specify a Microsoft Dynamic Host Configuration Protocol (DHCP) client’s unique identifier (in dotted-hexadecimal notation), use the client-identifierDHCP pool configuration command. It is valid for manual bindings only. Use the no form of this command to delete the client identifier.

client-identifier unique-identifier

no client-identifier

Syntax Description

unique-identifier	The distinct identification of the client in dotted-hexadecimal notation,
	for example, 01b7.0813.8811.66.

Defaults

None

Command Modes

DHCP pool configuration

Usage Guidelines

This command first appeared in Cisco IOS Release 12.0(1)T.

Microsoft DHCP clients require client identifiers instead of hardware addresses. The client identifier is formed by concatenating the media type and the MAC address. For example, the Microsoft client identifier for Ethernet address b708.1388.f166 is 01b7.0813.88f1.66, where 01 represents the Ethernet media type. For a list of media type codes, refer to the “Address Resolution Protocol Parameters” section of RFC 1700, Assigned Numbers.

Examples

The following example specifies the client identifier for Mac address b7.0813.8811.66 in dotted-hexadecimal notation:

client-identifier 01b7.0813.8811.66

Related Commands

hardware-address host

ip dhcp pool

18Release 12.0(1)T