diff --git a/twisted/internet/protocol.py b/twisted/internet/protocol.py
index 0eda004..d7973ca 100644
--- a/twisted/internet/protocol.py
+++ b/twisted/internet/protocol.py
@@ -622,7 +622,8 @@ class AbstractDatagramProtocol:
         This will be called by makeConnection(), users should not call it.
         """
         if not self.numPorts:
-            log.msg(eventSource=self, eventType="start", protocol=self)
+            log.msg(eventSource=self, eventType="start", eventTransport="udp",
+                    address="", protocol=self)
             self.startProtocol()
         self.numPorts = self.numPorts + 1
 
@@ -636,7 +637,8 @@ class AbstractDatagramProtocol:
         self.numPorts = self.numPorts - 1
         self.transport = None
         if not self.numPorts:
-            log.msg(eventSource=self, eventType="stop", protocol=self)
+            log.msg(eventSource=self, eventType="stop", eventTransport="udp",
+                    address="", protocol=self)
             self.stopProtocol()
 
 
diff --git a/twisted/internet/tcp.py b/twisted/internet/tcp.py
index 44cb5f9..0df7d6f 100644
--- a/twisted/internet/tcp.py
+++ b/twisted/internet/tcp.py
@@ -859,9 +859,12 @@ class Port(base.BasePort, _SocketCloser):
         # Make sure that if we listened on port 0, we update that to
         # reflect what the OS actually assigned us.
         self._realPortNumber = skt.getsockname()[1]
+        
+        _ip = self.interface if self.interface else "0.0.0.0"
 
-        log.msg(eventSource=self, eventType="start", factory=self.factory,
-                portNumber=self._realPortNumber)
+        log.msg(eventSource=self, eventType="start", eventTransport="tcp",
+                factory=self.factory,
+                address="%s:%d" % (_ip,self._realPortNumber))
 
         # The order of the next 6 lines is kind of bizarre.  If no one
         # can explain it, perhaps we should re-arrange them.
@@ -976,8 +979,10 @@ class Port(base.BasePort, _SocketCloser):
         """
         Log message for closing port
         """
-        log.msg(eventSource=self, eventType="stop", factory=self.factory,
-                portNumber=self._realPortNumber)
+        _ip = self.interface if self.interface else "0.0.0.0"
+        log.msg(eventSource=self, eventType="stop", eventTransport="tcp",
+                factory=self.factory,
+                address="%s:%d" % (_ip,self._realPortNumber))
 
 
     def connectionLost(self, reason):
diff --git a/twisted/internet/test/test_protocol.py b/twisted/internet/test/test_protocol.py
index 726f02e..780533b 100644
--- a/twisted/internet/test/test_protocol.py
+++ b/twisted/internet/test/test_protocol.py
@@ -360,7 +360,9 @@ class AbstractDatagramProtocolTestCase(TestCase, DictSubsetMixin):
             self.events[0],
             {"eventSource": self.proto,
              "protocol": self.proto,
-             "eventType": "start"})
+             "eventType": "start",
+             "eventTransport" : "udp",
+             "address" : ""})
 
 
     def test_doStopLogMessage(self):
@@ -375,4 +377,6 @@ class AbstractDatagramProtocolTestCase(TestCase, DictSubsetMixin):
             self.events[0],
             {"eventSource": self.proto,
              "protocol": self.proto,
-             "eventType": "stop"})
+             "eventType": "stop",
+             "eventTransport" : "udp",
+             "address" : ""})
diff --git a/twisted/internet/test/test_tcp.py b/twisted/internet/test/test_tcp.py
index 3497b0a..00ffaf8 100644
--- a/twisted/internet/test/test_tcp.py
+++ b/twisted/internet/test/test_tcp.py
@@ -325,6 +325,7 @@ class TCPPortTestsBuilder(ReactorBuilder, ObjectModelIntegrationMixin,
         ReactorBuilder.setUp(self)
         self.factory = ServerFactory()
         self.events = []
+        self.transportType = "tcp"
         log.addObserver(self.events.append)
         self.addCleanup(log.removeObserver, self.events.append)
 
@@ -341,7 +342,14 @@ class TCPPortTestsBuilder(ReactorBuilder, ObjectModelIntegrationMixin,
         Get the expected port number for the TCP port that experienced
         the connection event.
         """
-        return port.getHost().port
+        return str(port.getHost().port)
+        
+    def getExpectedConnectionPortHost(self, port):
+        """
+        Get the expected hostname/IP for the TCP port that experienced
+        the connection event.
+        """
+        return port.getHost().host
 
 
     def test_portStartStopLogMessage(self):
@@ -353,6 +361,7 @@ class TCPPortTestsBuilder(ReactorBuilder, ObjectModelIntegrationMixin,
         reactor = self.buildReactor()
         p = self.getListeningPort(reactor)
         listenPort = self.getExpectedConnectionPortNumber(p)
+        listenHost = self.getExpectedConnectionPortHost(p)
 
         def stopReactor(ignored):
             reactor.stop()
@@ -364,7 +373,8 @@ class TCPPortTestsBuilder(ReactorBuilder, ObjectModelIntegrationMixin,
         self.runReactor(reactor)
 
         expected = {
-            "eventSource": p, "portNumber": listenPort, "factory": self.factory}
+            "eventSource": p, "address": "%s:%s" % (listenHost, listenPort),
+            "eventTransport" : self.transportType, "factory": self.factory}
 
         for event in self.events:
             if event.get("eventType") == "start":
diff --git a/twisted/internet/test/test_unix.py b/twisted/internet/test/test_unix.py
index 293e965..7a3040a 100644
--- a/twisted/internet/test/test_unix.py
+++ b/twisted/internet/test/test_unix.py
@@ -147,6 +147,13 @@ class UNIXPortTestsBuilder(TCPPortTestsBuilder):
     """
 
     requiredInterfaces = [interfaces.IReactorUNIX]
+    
+    def setUp(self):
+        """
+        Extend TCP test setUp to set transportType to 'unix'.
+        """
+        TCPPortTestsBuilder.setUp(self)
+        self.transportType = "unix"
 
     def getListeningPort(self, reactor):
         """
@@ -160,6 +167,13 @@ class UNIXPortTestsBuilder(TCPPortTestsBuilder):
         Get the expected UNIX socket path from the given UNIX listening port.
         """
         return port.getHost().name
+    
+    def getExpectedConnectionPortHost(self, port):
+        """
+        Return an empty string, since there is no hostname for a UNIX socket.
+        """
+        
+        return ""
 
 
 globals().update(UNIXTestsBuilder.makeTestCaseClasses())
diff --git a/twisted/internet/unix.py b/twisted/internet/unix.py
index 1cfe8cd..c84f548 100644
--- a/twisted/internet/unix.py
+++ b/twisted/internet/unix.py
@@ -112,8 +112,8 @@ class Port(_UNIXPort, tcp.Port):
                     except:
                         pass
 
-        log.msg(eventSource=self, eventType="start", factory=self.factory,
-                portNumber=self.port)
+        log.msg(eventSource=self, eventType="start", eventTransport="unix",
+                address=":%s" % self.port,factory=self.factory)
         self.factory.doStart()
         try:
             skt = self.createInternetSocket()
@@ -136,8 +136,8 @@ class Port(_UNIXPort, tcp.Port):
         """
         Log message for closing socket
         """
-        log.msg(eventSource=self, eventType="stop", factory=self.factory,
-                portNumber=self.port)
+        log.msg(eventSource=self, eventType="stop", eventTransport="unix",
+                address=":%s" % self.port, factory=self.factory)
 
 
     def connectionLost(self, reason):