Show Ipv6 Dhcp Conflict - Cisco Catalyst 3560-X Command Reference Manual
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show ipv6 dhcp conflict
show ipv6 dhcp conflict
Note
Syntax Description
Command Modes
Command History
Usage Guidelines
Examples
Related Commands
Catalyst 3750-X and 3560-X Switch Command Reference
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Use the show ipv6 dhcp conflict privileged EXEC command on the switch stack or on a standalone
switch to 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
This command is available only if you have configured a dual IPv4 and IPv6 Switch Database
Management (SDM) template on the switch. The command is not supported on switches running the
LAN base feature set.
This command has no arguments or keywords.
Privileged EXEC
Release
Modification
12.2(53)SE2
This command was introduced.
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.
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
Command
Description
ipv6 dhcp pool
Configures a DHCPv6 pool and enters DHCPv6 pool configuration mode.
clear ipv6 dhcp
Clears an address conflict from the DHCPv6 server database.
conflict
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Chapter 2 Catalyst 3750-X and 3560-X Cisco IOS Commands
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