Show ipv6 dhcp conflict – Dell POWEREDGE M1000E User Manual

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Cisco Catalyst Blade Switch 3120 for HP Command Reference

OL-12248-03

Chapter 2 Cisco Catalyst Blade Switch 3120 for HP Cisco IOS Commands

show ipv6 dhcp conflict

show ipv6 dhcp conflict

Use the show ipv6 dhcp conflict privileged EXEC commandto display address conflicts found by a
Dynamic Host Configuration Protocol for IPv6 (DHCPv6) server when addresses are offered to the
client.

show ipv6 dhcp conflict

Note

This command is available only if you have configured a dual IPv4 and IPv6 Switch Database
Management (SDM) template on the switch.

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Usage Guidelines

To configure the dual IPv4 and IPv6 template, enter the sdm prefer dual-ipv4-and-ipv6 {default | vlan)
global configuration command, and reload the switch.

When you configure the DHCPv6 server to detect conflicts, it uses ping. The client uses neighbor
discovery to detect clients and reports to the server through a DECLINE message. If an address conflict
is detected, the address is removed from the pool, and the address is not assigned until the administrator
removes the address from the conflict list.

Examples

This is an example of the output from the show ipv6 dhcp conflict command:

Switch# show ipv6 dhcp conflict

Pool 350, prefix 2001:1005::/48

2001:1005::10

Related Commands

Release

Modification

12.2(46)SE

This command was introduced.

Command

Description

ipv6 dhcp pool

Configures a DHCPv6 pool and enters DHCPv6 pool configuration mode.

clear ipv6 dhcp
conflict

Clears an address conflict from the DHCPv6 server database.

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