modem = {}

network = {}

function modem:init(addr, handler)
  local o = {}
  setmetatable(o, self)
  self.__index = self
  o.network = network
  o.address = addr
  o.network[addr] = handler
  return o
end

function modem:open(port)
  return true
end

function modem:send(address, port, msg)
  self.network[address](address, self.address, port, 0, msg)
end

return modem