udp_server.rb

UDP Connectivity Testing

#!/usr/bin/ruby
require 'socket.so'

class UDPServer
  def initialize(port)
    @port = port
  end

  def start
    @socket = UDPSocket.new
    @socket.bind('', @port) # Bind to 0.0.0.0
    while true
      packet = @socket.recvfrom(1024)
      puts packet
    end
  end
end

server = UDPServer.new(54321)
server.start

udp_client.rb

#!/usr/bin/ruby
require 'socket.so'

class UDPClient
  def initialize(host, port)
    @host = host
    @port = port
  end

  def start
    @socket = UDPSocket.open
    @socket.connect(@host, @port)
    while true
      @socket.send("KNOCK KNOCK", 0, @host, @port)
      sleep 2
    end
  end
end

client = UDPClient.new("1.2.3.4", 54321)
client.start