import subprocess as sp
import os

status=0
a=1
f = os.popen('ip r |grep default')
now = f.read()
ip= now[11:23]
print("twoj adres routera " + ip)
while a==1:
    status, result = sp.getstatusoutput("ping -c1 -w2 " + ip)
    if status == 0:
        print("System " + ip + " is UP !")
    else:
        print("System " + ip + " is DOWN !")
        break