.network

print("Connecting to rednet...")
local modem = peripheral.find("modem")
local channel = os.getComputerID()
if not modem or not modem.isWireless() then
  print("Please attach a wireless modem.")
  sleep(5)
  os.shutdown()
end
if not modem.isOpen(channel) then modem.open(channel) end
if not modem.isOpen(65535) then modem.open(65535) end
print("Connected to rednet!")
sleep(1)