Grab Default Gateway on Linux

#  Grab Default Gateway on Linux


# Reference  ----->  http://serverfault.com/questions/31170/how-to-find-the-gateway-ip-address-in-linux



# Example below using subprocess

#!/usr/bin/python

import subprocess

#pipe = subprocess.Popen(ip route list | awk ' /^default/ {print $3}', stdout=subprocess.PIPE)
#output = pipe.stdout

subprocess.call("ip route list | awk ' /^default/ {print $3}'", shell=True)







# Using the iproute package:



# get the default route

Raw Commnad:      ip route list | awk ' /^default/ {print $3}'

Usage Example:      os.system("ip route list | awk ' /^default/ {print $3}'")





# get the default route but limit on eth0 (output may be empty)

ip route list dev eth0 | awk ' /^default/ {print $3}'