accept-lifetime Created by Sinan KizarLast updated 26 Mar , 2019 To set the time period during which the authentication key on a key chain is received as valid, use the accept-lifetime command inkey chain key configuration mode. To revert to the default value, use the no form of this command. […]
DHCP and DNS – DNS Client
clear host Use the clear host command in privileged EXEC mode to delete dynamic hostname-to-address mapping entries from the DNS client name-to-address cache. Syntax clear host {hostname | *} Parameters hostname—Name of the host for which hostname-to-address mappings are to be deleted from the DNS client name-to-address cache. *—Specifies that […]
DHCP and DNS – DHCP Snooping
ip dhcp snooping Use the ip dhcp snooping Global Configuration mode command to enable Dynamic Host Configuration Protocol (DHCP) Snooping globally. Use the no form of this command to restore the default configuration. Syntax ip dhcp snooping no ip dhcp snooping Parameters N/A Default Configuration DHCP snooping is disabled. Command […]
DHCP and DNS – DHCPv6
clear ipv6 dhcp client To restart DHCP for an IPv6 client on an interface, use the clear ipv6 dhcp client command in Privileged EXEC mode. Syntax clear ipv6 dhcp client interface-id Parameters interface-id—Interface identifier. Default Configuration N/A Command Mode Privileged EXEC mode User Guidelines This command restarts DHCP for an […]
DHCP and DNS – DHCP Server
address (DHCP Host) To manually bind an IP address to a DHCP client, use the address command in DHCP Pool Host Configuration mode. To remove the IP address binding to the client, use the no form of this command. Syntax address ip-address {mask | prefix-length} {client-identifier unique-identifier | hardware-address mac-address} […]
DHCP and DNS – DHCP Relay
ip dhcp relay enable (Global) Use the ip dhcp relay enable Global Configuration mode command to enable the DHCP relay feature on the device. Use the no form of this command to disable the DHCP relay feature. Syntax ip dhcp relay enable no ip dhcp relay enable Parameters N/A Default […]