diff --git a/bundle.json b/bundle.json
index 70ca585..757994c 100644
--- a/bundle.json
+++ b/bundle.json
@@ -1,6 +1,6 @@
 {
   "name": "route",
-  "version": "0.9.4-1",
+  "version": "0.9.4-2",
   "author": "Aeluin Chen",
   "email": "aeluin.chen@moxa.com",
   "description": "Handle the routing table",
diff --git a/ip/addr.py b/ip/addr.py
index e91b57e..cde5f6a 100755
--- a/ip/addr.py
+++ b/ip/addr.py
@@ -3,6 +3,7 @@
 import sh
 import netifaces
 import ipcalc
+import copy
 import logging
 
 # https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-class-net
@@ -67,7 +68,10 @@ def ifaddresses(iface):
     full = netifaces.ifaddresses(iface)
 
     info = {}
-    info["mac"] = full[netifaces.AF_LINK][0]['addr']
+    try:
+        info["mac"] = full[netifaces.AF_LINK][0]['addr']
+    except:
+        info["mac"] = ""
 
     try:
         info["link"] = open("/sys/class/net/%s/operstate" % iface).read()
@@ -80,13 +84,15 @@ def ifaddresses(iface):
         info["link"] = 0
 
     info["inet"] = []
+    if netifaces.AF_INET not in full:
+        return info
+
     for ip in full[netifaces.AF_INET]:
-        item = {}
-        item["ip"] = ip['addr']
-        item["netmask"] = ip['netmask']
-        item["broadcast"] = ip["broadcast"]
-        net = ipcalc.Network("%s/%s" % (ip['addr'], ip['netmask']))
-        item["subnet"] = str(net.network())
+        item = copy.deepcopy(ip)
+        if "addr" in item:
+            item["ip"] = item.pop("addr")
+            net = ipcalc.Network("%s/%s" % (item["ip"], item["netmask"]))
+            item["subnet"] = str(net.network())
         info["inet"].append(item)
 
     return info