diff --git a/calculate/lib/utils/ip.py b/calculate/lib/utils/ip.py
index 669c490..8ac17e6 100644
--- a/calculate/lib/utils/ip.py
+++ b/calculate/lib/utils/ip.py
@@ -41,6 +41,9 @@ SIOCGIFADDR = 0x8915
 SIOCGIFNETMASK = 0x891B
 SIOCGIFHWADDR = 0x8927
 
+# Resources allocated
+IFF_RUNNING = 0x40
+
 # ip digit from 0|1-255|254 (template)
 IP_DIG = "[%s-9]|(?:1[0-9]|[1-9])[0-9]|2[0-4][0-9]|25[0-%s]"
 # ip net 0-32
@@ -195,6 +198,17 @@ def getIp(iface):
     ip = struct.unpack('16sH2x4s8x', res)[2]
     return socket.inet_ntoa(ip)
 
+def getPlugged(iface):
+    sockfd = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    ifreq = struct.pack('16sH14s', iface, socket.AF_INET, '\x00'*14)
+    try:
+        res = fcntl.ioctl(sockfd, SIOCGIFFLAGS, ifreq)
+    except IOError:
+        return False
+    finally:
+        sockfd.close()
+    return bool(struct.unpack('16sH2x4s8x', res)[1] & IFF_RUNNING)
+
 def getMask(iface):
     """
     Get mask for interface