Class: DHCP::AutoConfigurationOption

Inherits:
Option
  • Object
show all
Defined in:
lib/net/dhcp/options.rb

Overview

Operating Systems are now attempting to support ad-hoc networks of two or more systems, while keeping user configuration at a minimum. To accommodate this, in the absence of a central configuration mechanism (DHCP), some OS’s are automatically choosing a link-local IP address which will allow them to communicate only with other hosts on the same link. This address will not allow the OS to communicate with anything beyond a router. However, some sites depend on the fact that a host with no DHCP response will have no IP address. This document describes a mechanism by which DHCP servers are able to tell clients that they do not have an IP address to offer, and that the client should not generate an IP address it’s own.

See rfc2563 for full details

The code for this option is 116, and its length is 1.

The default payload for this option is $DHCP_AUTOCONF_YES

Instance Attribute Summary

Attributes inherited from Option

#len, #payload, #type

Instance Method Summary collapse

Methods inherited from Option

#eql?, #pack, #to_a

Constructor Details

#initialize(params = {}) ⇒ AutoConfigurationOption

Returns a new instance of AutoConfigurationOption.



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# File 'lib/net/dhcp/options.rb', line 547

def initialize(params={})
  params[:type] =  $DHCP_AUTOCONF
  params[:payload] = params.fetch(:payload, [$DHCP_AUTOCONF_YES])
  super(params)
end

Instance Method Details

#to_s ⇒ Object 



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# File 'lib/net/dhcp/options.rb', line 553

def to_s
  "DHCP Auto-Configuration = #{self.payload == $DHCP_AUTOCONF_YES ? 'Yes' :  'No' }"
end