From 3f002668fb19cdb4b0e5b66a8e4e2ada5092b3b9 Mon Sep 17 00:00:00 2001
From: Tim Fechner <tim.fechner@hs-hannover.de>
Date: Thu, 15 Sep 2016 08:40:54 +0200
Subject: [PATCH] Fix #33 netaddr.core.AddrFormatError

---
 salt_observer/management/commands/fetchgrains.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/salt_observer/management/commands/fetchgrains.py b/salt_observer/management/commands/fetchgrains.py
index b2feccc..65f79f0 100644
--- a/salt_observer/management/commands/fetchgrains.py
+++ b/salt_observer/management/commands/fetchgrains.py
@@ -35,10 +35,14 @@ class Command(ApiCommand, BaseCommand):
 
     def _update_connections(self, interfaces, minion, touched):
         ''' Update networks and network interfaces '''
+
         for if_name, if_data in interfaces.items():
             if if_name in ['lo', 'lo0']:
                 continue
 
+            if not all([if_data['ipv4']['address'], if_data['ipv4']['netmask'], if_data['mac_address']]):
+                continue
+
             ipv4_network = str(netaddr.IPNetwork('{}/{}'.format(if_data['ipv4']['address'], if_data['ipv4']['netmask'])).network)
             network = self._update_network(ipv4_network, if_data['ipv4']['netmask'])
             touched['networks'].append(network)
-- 
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