gistfile1.txt

diff --git a/library/system/setup b/library/system/setup
index e39910f..d21bc71 100644
--- a/library/system/setup
+++ b/library/system/setup
@@ -1443,21 +1443,23 @@ class LinuxNetwork(Network):
                     netmask = socket.inet_ntoa(struct.pack('!L', netmask_bin))
                     network = socket.inet_ntoa(struct.pack('!L', address_bin & netmask_bin))
                     iface = words[-1]
-                    if iface != device:
-                        interfaces[iface] = {}
-                        interfaces[iface].update(interfaces[device])
-                    interfaces[iface]['ipv4'] = {'address': address,
-                                                 'netmask': netmask,
-                                                 'network': network}
-
-                    # If this is the default address, update default_ipv4
-                    if 'address' in default_ipv4 and default_ipv4['address'] == address:
-                        default_ipv4['netmask'] = netmask
-                        default_ipv4['network'] = network
-                        default_ipv4['macaddress'] = macaddress
-                        default_ipv4['mtu'] = interfaces[device]['mtu']
-                        default_ipv4['type'] = interfaces[device].get("type", "unknown")
-                        default_ipv4['alias'] = words[-1]
+                    if "secondary" not in words:
+                        if iface != device:
+                            interfaces[iface] = {}
+                            interfaces[iface].update(interfaces[device])
+
+                        interfaces[iface]['ipv4'] = {'address': address,
+                                                     'netmask': netmask,
+                                                     'network': network}
+
+                        # If this is the default address, update default_ipv4
+                        if 'address' in default_ipv4 and default_ipv4['address'] == address:
+                            default_ipv4['netmask'] = netmask
+                            default_ipv4['network'] = network
+                            default_ipv4['macaddress'] = macaddress
+                            default_ipv4['mtu'] = interfaces[device]['mtu']
+                            default_ipv4['type'] = interfaces[device].get("type", "unknown")
+                            default_ipv4['alias'] = words[-1]
 
                     if not address.startswith('127.'):
                         ips['all_ipv4_addresses'].append(address)