Catalyst 3750-E and 3560-E Switch Cisco IOS ... - DNIP . NET

Chapter 2Catalyst 3750-E and 3560-E Switch Cisco IOS Commandsclear ipv6 dhcp conflictclear ipv6 dhcp conflictUse the clear ipv6 dhcp conflict privileged EXEC command on the switch stack or on a standaloneswitch to clear an address conflict from the Dynamic Host Configuration Protocol for IPv6 (DHCPv6)server database.clear ipv6 dhcp conflict {* | IPv6-address}NoteThis command is available only if you have configured a dual IPv4 and IPv6 Switch DatabaseManagement (SDM) template on the switch.Syntax Description* Clear all address conflicts.IPv6-addressClear the host IPv6 address that contains the conflicting address.DefaultsNo default is defined.Command ModesPrivileged EXECCommand HistoryRelease12.2(46)SEModificationThis command was introduced.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 neighbordiscovery to detect clients and reports to the server through a DECLINE message. If an address conflictis detected, the address is removed from the pool, and the address is not assigned until the administratorremoves the address from the conflict list.If you use the asterisk (*) character as the address parameter, DHCP clears all conflicts.ExamplesThis example shows how to clear all address conflicts from the DHCPv6 server database:Switch# clear ipv6 dhcp conflict *Related CommandsCommandshow ipv6 dhcpconflictDescriptionDisplays address conflicts found by a DHCPv6 server, or reported througha DECLINE message from a client.OL-9776-08Catalyst 3750-E and 3560-E Switch Command Reference2-97