Dell PowerEdge M520 Dell PowerConnect M6220/M6348/M8024/M8024-k CLI Referen - Page 318
release dhcp, Syntax, Parameter Description, Default Configuration, Command Mode, User Guidelines
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renew dhcp show dhcp lease release dhcp Use the release dhcp command in Privileged EXEC mode to force the DHCPv4 client to release a leased address. Syntax release dhcp interface-id Parameter Description Parameter interface-id Description Any valid VLAN interface. See Interface Naming Conventions for interface representation. Default Configuration This command has no default configuration. Command Mode Privileged EXEC User Guidelines The DHCP client sends a DHCP RELEASE message telling the DHCP server that it no longer needs the IP address, and that the IP address can be reassigned to another client. The interface method does not change and will still be DHCP even after issuing this command. To lease an IP address again, issue either the renew dhcp interface-id command below or ip address dhcp (Interface Config) command on page 464 in interface mode. If the IPv4 address on the interface was not assigned by DHCP, then the command fails and displays the following error message: Interface does not have a DHCP-originated address. The release dhcp option is applicable only for routing interfaces and not for Out-of-Band port. Use the ip address (Out-of-Band) none command on the Out-of-Band interface to clear a DHCP-acquired address. 318 DHCP Management Interface Commands
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