# File lib/packetfu/packet.rb, line 341
                def inspect_hex(arg=0)
                        case arg
                        when :layers
                                ret = []
                                @headers.size.times do |i|
                                        ret << hexify(@headers[i])
                                end
                                ret
                        when (0..9)
                                if @headers[arg]
                                        hexify(@headers[arg])
                                else
                                        nil
                                end
                        when :all
                                inspect_hex(0)
                        end
                end