diff --git a/txupnp/__init__.py b/txupnp/__init__.py
index d23d145..4105b7d 100644
--- a/txupnp/__init__.py
+++ b/txupnp/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.0.1a1"
+__version__ = "0.0.1a2"
 __name__ = "txupnp"
 __author__ = "Jack Robison"
 __maintainer__ = "Jack Robison"
diff --git a/txupnp/cli.py b/txupnp/cli.py
index 05ad231..b7473b4 100644
--- a/txupnp/cli.py
+++ b/txupnp/cli.py
@@ -15,7 +15,10 @@ def run_command(found, u, command):
         return
     if command == "debug_device":
         print(u.get_debug_info())
-    if command == "list_mappings":
+    elif command == "get_external_ip":
+        ip = yield u.get_external_ip()
+        print(ip)
+    elif command == "list_mappings":
         redirects = yield u.get_redirects()
         print("found {} redirects".format(len(redirects)))
         for redirect in redirects:
@@ -33,7 +36,7 @@ def main():
         observer.start()
         log.setLevel(logging.DEBUG)
     command = args.command
-    if command not in ['debug_device', 'list_mappings']:
+    if command not in ['debug_device', 'list_mappings', 'get_external_ip']:
         return sys.exit(0)
 
     def show(err):
diff --git a/txupnp/gateway.py b/txupnp/gateway.py
index 88ded67..7dee8b6 100644
--- a/txupnp/gateway.py
+++ b/txupnp/gateway.py
@@ -32,7 +32,7 @@ class CaseInsensitive(object):
             except AttributeError as err:
                 not_evaluated[k] = v
         if not_evaluated:
-            log.error("%s did not apply kwargs: %s", self.__class__.__name__, not_evaluated)
+            log.warning("%s did not apply kwargs: %s", self.__class__.__name__, not_evaluated)
 
     def _get_attr_name(self, case_insensitive):
         for k, v in self.__dict__.items():
@@ -87,6 +87,7 @@ class Device(CaseInsensitive):
     modelURL = None
     serialNumber = None
     udn = None
+    upc = None
     presentationURL = None
     iconList = None
 
@@ -165,7 +166,7 @@ class Gateway(object):
         response = yield treq.get(self.location)
         self.xml_response = yield response.content()
         if not self.xml_response:
-            log.error("service sent an empty reply\n%s", self.debug_device())
+            log.warning("service sent an empty reply\n%s", self.debug_device())
         xml_dict = etree_to_dict(ElementTree.fromstring(self.xml_response))
         schema_key = DEVICE
         root = ROOT
diff --git a/txupnp/scpd.py b/txupnp/scpd.py
index 6ccfb33..86d30e8 100644
--- a/txupnp/scpd.py
+++ b/txupnp/scpd.py
@@ -55,10 +55,10 @@ class _SCPDCommand(object):
         self.param_names = param_names
         self.returns = returns
 
-    def extract_body(self, xml_response, service_key=IP_SCHEMA):
+    def extract_body(self, xml_response):
         content_dict = etree_to_dict(ElementTree.fromstring(xml_response))
         envelope = content_dict[ENVELOPE]
-        return flatten_keys(envelope[BODY], "{%s}" % service_key)
+        return flatten_keys(envelope[BODY], "{%s}" % self.service_id)
 
     def extract_response(self, body):
         body = handle_fault(body)  # raises UPnPError if there is a fault