function isModemName(name)
	if name == "top" or name == "bottom" or name == "front" or name == "back" or name == "left" or name == "right" then
		return true
	end
	return false
end

function isModem (name)
	if peripheral.isPresent(name) and peripheral.getType(name) == "modem" then
		return true
	end
	return false
end

args = {...}
if table.getn(args) ~= 2 then
  print("NetRepeat By UDXS")
  print("Error: Incorrect Usage")
  print("Correct Format: \"NetRepeat <Modem1> <Modem2>\"")
  return
end

if not isModemName(args[1]) and not isModemName(args[2]) then
	print ("NetRepeat By UDXS")
	print("Error: Invalid Modem Names")
	print("Possible Names: \"top\", \"bottom\", \"front\", \"back\", \"left\", \"right\"")
	return
end

if not isModem(args[1]) and not isModem(args2) then
	print"NetRepeat By UDXS")
	print("Error: One or More Modems Not Connected")
	print("Possible Names: \"top\", \"bottom\", \"front\", \"back\", \"left\", \"right\"")
	return
end