Qtech QSW-8200-28T-POEAC- DC [23/79] Chapter 2 commands for dhcpv6

User Manual

Chapter 2. Commands for DHCPv6 23

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Chapter 2 COMMANDS FOR DHCPV6

2.1 clear ipv6 dhcp binding

 Command: clear ipv6 dhcp binding [<ipv6-address>] [pd <ipv6-prefix | prefix-length>]

 Function: To clear one specified DHCPv6 assigned address binding record or all the IPv6

address binding records.

 Parameter: <ipv6-address> is the specified IPv6 address with binding record; <ipv6-

prefix| prefix-length> is the specified IPv6 prefix with binding record; To clear all IPv6

address binding record if there is no specified record.

 Command Mode: Admin Configuration Mode.

 Usage Guide: DHCPv6 IPv6 address binding information can be displayed through the

command show ipv6 dhcp binding. If DHCPv6 client does not use the DHCPv6 allocated

IPv6 address but when the life time of the IPv6 address does not end, the DHCPv6

server will not remove its bind for this address. In this situation, the address binding

information can be removed manually through this command; and if no parameter is

appended, this command will remove all the address binding information, then all

addresses and prefix will be assigned again in the DHCPv6 address pool.

 Example: To delete all binding record of IPv6 address and prefix.

 Switch#clear ipv6 dhcp binding

 Relative Command: show ipv6 dhcp binding

2.2 clear ipv6 dhcp conflict

 Command: clear ipv6 dhcp conflict [<address>]

 Function: Clear the address with the conflict record in address conflict log.

 Parameter: <address> is the specified address with the conflict record, no specified

address will clear all conflict records.

 Command mode: Admin Mode

 Usage Guide: With show ipv6 dhcp conflict command, the user can check the conflict

in which IP addresses. With this command, the user can clears the conflict record of an

address. If no specified address will clear the conflict record of all addresses in log. After

the conflict records are cleared in log, these addresses can be used by DHCPv6 server

again.

 Example: When administrator checks the conflict logs, administrator discovers that

address 2001::1 with the conflict record is not used, so its record will be cleared from

address conflict files.

 Switch#clear ipv6 dhcp conflict 2001::1

2.3 clear ipv6 dhcp statistics

 Command: clear ipv6 dhcp statistics