# File lib/aws/ec2/security_group/ip_permission.rb, line 31
        def initialize security_group, protocol, ports, options = {}
          @security_group = security_group
          @protocol = protocol.to_s.downcase.to_sym
          @port_range = (Array(ports).first..Array(ports).last)
          @ip_ranges = Array(options[:ip_ranges])
          @groups = Array(options[:groups])
          super
        end