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Full Discussion: Purpose of Static IP address through DHCP
Operating Systems Linux Red Hat Purpose of Static IP address through DHCP Post 302533969 by neutronscott on Sunday 26th of June 2011 06:18:58 AM
Old 06-26-2011
Devices which provide services might would need a static ip.
I can't say much for what you'd assign them for, but I know for sure it is better to assign static addresses by DHCP than on each client. Say your network gets larger and you need to split it into subnets, it would suck going around to all the machines to change them.
 

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LEARN ABOUT CENTOS

dhcp_release

DHCP_RELEASE(1) 					      General Commands Manual						   DHCP_RELEASE(1)

NAME

       dhcp_release - Release a DHCP lease on a the local dnsmasq DHCP server.

SYNOPSIS

       dhcp_release <interface> <address> <MAC address> <client_id>

DESCRIPTION

       A utility which forces the DHCP server running on this machine to release a DHCP lease.

       Send a DHCPRELEASE message via the specified interface to tell the local DHCP server to delete a particular lease.

       The  interface  argument  is  the interface in which a DHCP request _would_ be received if it was coming from the client, rather than being
       faked up here.

       The address argument is a dotted-quad IP addresses and mandatory.

       The MAC address is colon separated hex, and is mandatory. It may be prefixed by an address-type byte followed by -, eg

       10-11:22:33:44:55:66

       but if the address-type byte is missing it is assumed to be 1, the type for ethernet. This encoding is the one used in dnsmasq lease files.

       The client-id is optional. If it is "*" then it treated as being missing.

NOTES

       MUST be run as root - will fail otherwise.

LIMITATIONS

       Only usable on IPv4 DHCP leases.

SEE ALSO

       dnsmasq(8)

AUTHOR

       This manual page was written by Simon Kelley <simon@thekelleys.org.uk>.

																   DHCP_RELEASE(1)
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