Cisco 300 Series User Manual

DHCPv6 Commands
OL-32830-01 Command Line Interface Reference Guide 348
14
14.8 show ipv6 dhcp
Use the show ipv6 dhcp command in User EXEC or Privileged EXEC mode to
display the Dynamic DHCP unique identifier (DUID) on a specified device.This
information is relevant for DHCPv6 clients and DHCPv6 relays.
Syntax
show ipv6 dhcp
Parameters
NA
Command Mode
User EXEC mode
Privileged EXEC mode
User Guidelines
This command uses the DUID, which is based on the link-layer address for both
client and server identifiers. The device uses the MAC address from the
lowest-numbered interface to form the DUID. The network interface is assumed to
be permanently attached to the device.
Examples
Example 1. The following is sample output from this command when the switch’s
UDID format is vendor based on enterprise number:
switchxxxxxx# show ipv6 dhcp
The switch’s DHCPv6 unique identifier(DUID)is 0002000000090CC084D303000912
Format: 2
Enterprise Number: 9
Identifier: 0CC084D303000912
Example 2. The following is sample output from this command when the switch’s
UDID format is the vendor-based on link-layer address:

Cisco 300 Series Specifications

General

Model	Cisco 300 Series
Category	Switch
Dimensions	Varies by model
Weight	Varies by model
Power over Ethernet (PoE)	Available on select models
Management	Web-based GUI, SNMP, CLI
VLANs	Up to 256
Security Features	ACLs, 802.1X, Port Security
Humidity	10% to 90% non-condensing
Ports	8, 16, 24, 48