2-104
Catalyst 3750-X and 3560-X Switch Command Reference
OL-29704-01
Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
clear ipv6 dhcp conflict
clear ipv6 dhcp conflict
Use the clear ipv6 dhcp conflict privileged EXEC command on the switch stack or on a standalone
switch to clear an address conflict from the Dynamic Host Configuration Protocol for IPv6 (DHCPv6)
server database.
clear ipv6 dhcp conflict {* | IPv6-address}
Note This command is available only if you have configured a dual IPv4 and IPv6 Switch Database
Management (SDM) template on the switch. This command is not supported if the switch is running the
LAN base feature set.
Syntax Description
Defaults No default is defined.
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.
If you use the asterisk (*) character as the address parameter, DHCP clears all conflicts.
Examples This example shows how to clear all address conflicts from the DHCPv6 server database:
Switch# clear ipv6 dhcp conflict *
Related Commands
* Clear all address conflicts.
IPv6-address Clear the host IPv6 address that contains the conflicting address.
Release Modification
12.2(53)SE2 This command was introduced.
Command Description
show ipv6 dhcp
conflict
Displays address conflicts found by a DHCPv6 server, or reported through
a DECLINE message from a client.
To Next Page
Loading...
Need help?
General