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개발/Network

DHCP messages (RFC2131)

Jaeyeon Baek 2011.08.08 08:01

DHCP messages

 

 Message         Use

   -------         ---


   DHCPDISCOVER -  Client broadcast to locate available servers.


   DHCPOFFER    -  Server to client in response to DHCPDISCOVER with

                   offer of configuration parameters.


   DHCPREQUEST  -  Client message to servers either (a) requesting

                   offered parameters from one server and implicitly

                   declining offers from all others, (b) confirming

                   correctness of previously allocated address after,

                   e.g., system reboot, or (c) extending the lease on a

                   particular network address.


   DHCPACK      -  Server to client with configuration parameters,

                   including committed network address.


   DHCPNAK      -  Server to client indicating client's notion of network

                   address is incorrect (e.g., client has moved to new

                   subnet) or client's lease as expired


   DHCPDECLINE  -  Client to server indicating network address is already

                   in use.


   DHCPRELEASE  -  Client to server relinquishing network address and

                   cancelling remaining lease.


   DHCPINFORM   -  Client to server, asking only for local configuration

                   parameters; client already has externally configured

                   network address.

 

http://www.faqs.org/rfcs/rfc2131.html


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