Ruby script to generate a range of IP Addresses.

ipAdderGen.rb

class IP
  def intitialize(ip)
		@ip = ip
	end

	def to_s
		@ip
	end

	def==(other)
		to_s==other.to_s
	end

	def succ
		return @ip if @ip == "255.255.255.255"
		parts = @ip.split('.').reverse
		parts.each_with_index do |part,i|
			if part.to_i < 255
				part.succ!
				break
			elsif part == "255"
				part.replace("0") unless i == 3
			else
				raise ArgumentError, "Invalid number #{part} in IP address"
			end
		end
        parts.reverse.join('.') 
    end
		
	def succ!
		@ip.replace(succ)
	end
end
				
print "Input Starting IP Address: "
start_ip = gets.strip 

print "Input Ending IP Address: "
end_ip = gets.strip

i = IP.new(start_ip)

ofile = File.open("ips.txt", "W")
ofile.puts i.succ! until i == end_ip
ofile.close