diff --git a/README b/README
index 67e2d73..a5f1695 100644
--- a/README
+++ b/README
@@ -124,6 +124,10 @@ Notes:
 - The following section filters are recommended to be disabled:
   "NIT (0x40)", "SDT (0x42)", "TDT (0x70)"
 
+- The EXT protocol listens UDP packets from localhost. The default listen
+  port base number is 4321 and it can be configured via a commandline
+  switch. The port range is defined by the number of IPTV devices (max. 8).
+
 Acknowledgements:
 
 - The IPTV section filtering code is derived from Linux kernel.
diff --git a/config.c b/config.c
index 424cf7f..e47d029 100644
--- a/config.c
+++ b/config.c
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: config.c,v 1.15 2007/10/08 23:51:58 rahrenbe Exp $
+ * $Id: config.c,v 1.16 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #include "config.h"
@@ -16,7 +16,8 @@ cIptvConfig::cIptvConfig(void)
   tsBufferPrefillRatio(0),
   useBytes(1),
   sectionFiltering(1),
-  sidScanning(1)
+  sidScanning(1),
+  extListenPortBase(4321)
 {
   for (unsigned int i = 0; i < sizeof(disabledFilters); ++i)
       disabledFilters[i] = -1;
diff --git a/config.h b/config.h
index 8d93b36..c05d394 100644
--- a/config.h
+++ b/config.h
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: config.h,v 1.13 2007/10/08 23:51:58 rahrenbe Exp $
+ * $Id: config.h,v 1.14 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #ifndef __IPTV_CONFIG_H
@@ -22,6 +22,7 @@ protected:
   unsigned int useBytes;
   unsigned int sectionFiltering;
   unsigned int sidScanning;
+  unsigned int extListenPortBase;
   int disabledFilters[SECTION_FILTER_TABLE_SIZE];
 
 public:
@@ -32,6 +33,7 @@ public:
   unsigned int GetUseBytes(void) { return useBytes; }
   unsigned int GetSectionFiltering(void) { return sectionFiltering; }
   unsigned int GetSidScanning(void) { return sidScanning; }
+  unsigned int GetExtListenPortBase(void) { return extListenPortBase; }
   unsigned int GetDisabledFiltersCount(void);
   int GetDisabledFilters(unsigned int Index);
   void SetTsBufferSize(unsigned int Size) { tsBufferSize = Size; }
@@ -39,6 +41,7 @@ public:
   void SetUseBytes(unsigned int On) { useBytes = On; }
   void SetSectionFiltering(unsigned int On) { sectionFiltering = On; }
   void SetSidScanning(unsigned int On) { sidScanning = On; }
+  void SetExtListenPortBase(unsigned int PortNumber) { extListenPortBase = PortNumber; }
   void SetDisabledFilters(unsigned int Index, int Number);
 };
 
diff --git a/device.c b/device.c
index 19fa558..7d1f32e 100644
--- a/device.c
+++ b/device.c
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: device.c,v 1.70 2007/10/19 21:36:27 rahrenbe Exp $
+ * $Id: device.c,v 1.71 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #include "config.h"
@@ -225,7 +225,7 @@ bool cIptvDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
      error("ERROR: Unrecognized IPTV channel settings: %s", Channel->PluginParam());
      return false;
      }
-  pIptvStreamer->Set(location, parameter, protocol);
+  pIptvStreamer->Set(location, parameter, deviceIndex, protocol);
   if (pSidScanner && IptvConfig.GetSectionFiltering() && IptvConfig.GetSidScanning())
      pSidScanner->SetChannel(Channel);
   return true;
diff --git a/iptv.c b/iptv.c
index c8bb1ec..5c2f770 100644
--- a/iptv.c
+++ b/iptv.c
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: iptv.c,v 1.21 2007/10/15 21:03:45 rahrenbe Exp $
+ * $Id: iptv.c,v 1.22 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #include <getopt.h>
@@ -66,7 +66,8 @@ const char *cPluginIptv::CommandLineHelp(void)
 {
   debug("cPluginIptv::CommandLineHelp()\n");
   // Return a string that describes all known command line options.
-  return "  -d <num>, --devices=<number> number of devices to be created (default: 1)\n";
+  return "  -d <num>, --devices=<number> number of devices to be created\n"
+         "  -p <port>,--port=<port>      base port number for EXT protocol UDP streaming\n";
 }
 
 bool cPluginIptv::ProcessArgs(int argc, char *argv[])
@@ -75,15 +76,19 @@ bool cPluginIptv::ProcessArgs(int argc, char *argv[])
   // Implement command line argument processing here if applicable.
   static const struct option long_options[] = {
        { "devices", required_argument, NULL, 'd' },
+       { "port",    required_argument, NULL, 'p' },
        { NULL }
      };
 
   int c;
-  while ((c = getopt_long(argc, argv, "d:", long_options, NULL)) != -1) {
+  while ((c = getopt_long(argc, argv, "d:p:", long_options, NULL)) != -1) {
         switch (c) {
           case 'd':
                deviceCount = atoi(optarg);
                break;
+          case 'p':
+               IptvConfig.SetExtListenPortBase(atoi(optarg));
+               break;
           default:
                return false;
           }
diff --git a/protocolext.c b/protocolext.c
index d6a2c6c..ef7dba6 100644
--- a/protocolext.c
+++ b/protocolext.c
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: protocolext.c,v 1.7 2007/10/19 21:36:28 rahrenbe Exp $
+ * $Id: protocolext.c,v 1.8 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #include <sys/wait.h>
@@ -22,7 +22,7 @@
 
 cIptvProtocolExt::cIptvProtocolExt()
 : pid(-1),
-  listenPort(4321),
+  listenPort(IptvConfig.GetExtListenPortBase()),
   scriptParameter(0),
   socketDesc(-1),
   readBufferLen(TS_SIZE * IptvConfig.GetReadBufferTsCount())
@@ -269,13 +269,15 @@ bool cIptvProtocolExt::Close(void)
   return true;
 }
 
-bool cIptvProtocolExt::Set(const char* Location, const int Parameter)
+bool cIptvProtocolExt::Set(const char* Location, const int Parameter, const int Index)
 {
-  debug("cIptvProtocolExt::Set(): Location=%s Parameter=%d\n", Location, Parameter);
+  debug("cIptvProtocolExt::Set(): Location=%s Parameter=%d Index=%d\n", Location, Parameter, Index);
   if (!isempty(Location)) {
-    // Update stream address and port
+    // Update script file and parameter
     scriptFile = strcpyrealloc(scriptFile, Location);
     scriptParameter = Parameter;
+    // Update listen port
+    listenPort = IptvConfig.GetExtListenPortBase() + Index;
     }
   return true;
 }
diff --git a/protocolext.h b/protocolext.h
index accde45..1d6ff66 100644
--- a/protocolext.h
+++ b/protocolext.h
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: protocolext.h,v 1.4 2007/10/19 21:36:28 rahrenbe Exp $
+ * $Id: protocolext.h,v 1.5 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #ifndef __IPTV_PROTOCOLEXT_H
@@ -35,7 +35,7 @@ public:
   cIptvProtocolExt();
   virtual ~cIptvProtocolExt();
   virtual int Read(unsigned char* *BufferAddr);
-  virtual bool Set(const char* Location, const int Parameter);
+  virtual bool Set(const char* Location, const int Parameter, const int Index);
   virtual bool Open(void);
   virtual bool Close(void);
   virtual cString GetInformation(void);
diff --git a/protocolfile.c b/protocolfile.c
index 77f380a..3f32a19 100644
--- a/protocolfile.c
+++ b/protocolfile.c
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: protocolfile.c,v 1.11 2007/10/19 21:36:28 rahrenbe Exp $
+ * $Id: protocolfile.c,v 1.12 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #include <fcntl.h>
@@ -106,9 +106,9 @@ bool cIptvProtocolFile::Close(void)
   return true;
 }
 
-bool cIptvProtocolFile::Set(const char* Location, const int Parameter)
+bool cIptvProtocolFile::Set(const char* Location, const int Parameter, const int Index)
 {
-  debug("cIptvProtocolFile::Set(): Location=%s Parameter=%d\n", Location, Parameter);
+  debug("cIptvProtocolFile::Set(): Location=%s Parameter=%d Index=%d\n", Location, Parameter, Index);
   if (!isempty(Location)) {
      // Close the file stream
      CloseFile();
diff --git a/protocolfile.h b/protocolfile.h
index 56a05ae..0a1c501 100644
--- a/protocolfile.h
+++ b/protocolfile.h
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: protocolfile.h,v 1.6 2007/10/19 21:36:28 rahrenbe Exp $
+ * $Id: protocolfile.h,v 1.7 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #ifndef __IPTV_PROTOCOLFILE_H
@@ -29,7 +29,7 @@ public:
   cIptvProtocolFile();
   virtual ~cIptvProtocolFile();
   virtual int Read(unsigned char* *BufferAddr);
-  virtual bool Set(const char* Location, const int Parameter);
+  virtual bool Set(const char* Location, const int Parameter, const int Index);
   virtual bool Open(void);
   virtual bool Close(void);
   virtual cString GetInformation(void);
diff --git a/protocolhttp.c b/protocolhttp.c
index 0561b73..6e4337e 100644
--- a/protocolhttp.c
+++ b/protocolhttp.c
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: protocolhttp.c,v 1.11 2007/10/19 21:36:28 rahrenbe Exp $
+ * $Id: protocolhttp.c,v 1.12 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #include <sys/types.h>
@@ -349,9 +349,9 @@ bool cIptvProtocolHttp::Close(void)
   return true;
 }
 
-bool cIptvProtocolHttp::Set(const char* Location, const int Parameter)
+bool cIptvProtocolHttp::Set(const char* Location, const int Parameter, const int Index)
 {
-  debug("cIptvProtocolHttp::Set(): Location=%s Parameter=%d\n", Location, Parameter);
+  debug("cIptvProtocolHttp::Set(): Location=%s Parameter=%d Index=%d\n", Location, Parameter, Index);
   if (!isempty(Location)) {
     // Disconnect the current socket
     Disconnect();
diff --git a/protocolhttp.h b/protocolhttp.h
index 70c4abc..dba87d7 100644
--- a/protocolhttp.h
+++ b/protocolhttp.h
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: protocolhttp.h,v 1.8 2007/10/19 21:36:28 rahrenbe Exp $
+ * $Id: protocolhttp.h,v 1.9 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #ifndef __IPTV_PROTOCOLHTTP_H
@@ -36,7 +36,7 @@ public:
   cIptvProtocolHttp();
   virtual ~cIptvProtocolHttp();
   virtual int Read(unsigned char* *BufferAddr);
-  virtual bool Set(const char* Location, const int Parameter);
+  virtual bool Set(const char* Location, const int Parameter, const int Index);
   virtual bool Open(void);
   virtual bool Close(void);
   virtual cString GetInformation(void);
diff --git a/protocolif.h b/protocolif.h
index 0e49555..8cd2642 100644
--- a/protocolif.h
+++ b/protocolif.h
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: protocolif.h,v 1.6 2007/10/19 21:36:28 rahrenbe Exp $
+ * $Id: protocolif.h,v 1.7 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #ifndef __IPTV_PROTOCOLIF_H
@@ -14,7 +14,7 @@ public:
   cIptvProtocolIf() {}
   virtual ~cIptvProtocolIf() {}
   virtual int Read(unsigned char* *BufferAddr) = 0;
-  virtual bool Set(const char* Location, const int Parameter) = 0;
+  virtual bool Set(const char* Location, const int Parameter, const int Index) = 0;
   virtual bool Open(void) = 0;
   virtual bool Close(void) = 0;
   virtual cString GetInformation(void) = 0;
diff --git a/protocoludp.c b/protocoludp.c
index 3ed1cf1..7d32209 100644
--- a/protocoludp.c
+++ b/protocoludp.c
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: protocoludp.c,v 1.12 2007/10/19 21:36:28 rahrenbe Exp $
+ * $Id: protocoludp.c,v 1.13 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #include <sys/types.h>
@@ -232,9 +232,9 @@ bool cIptvProtocolUdp::Close(void)
   return true;
 }
 
-bool cIptvProtocolUdp::Set(const char* Location, const int Parameter)
+bool cIptvProtocolUdp::Set(const char* Location, const int Parameter, const int Index)
 {
-  debug("cIptvProtocolUdp::Set(): Location=%s Parameter=%d\n", Location, Parameter);
+  debug("cIptvProtocolUdp::Set(): Location=%s Parameter=%d Index=%d\n", Location, Parameter, Index);
   if (!isempty(Location)) {
     // Drop the multicast group
     DropMulticast();
diff --git a/protocoludp.h b/protocoludp.h
index 6b3cc6c..e91a640 100644
--- a/protocoludp.h
+++ b/protocoludp.h
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: protocoludp.h,v 1.9 2007/10/19 21:36:28 rahrenbe Exp $
+ * $Id: protocoludp.h,v 1.10 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #ifndef __IPTV_PROTOCOLUDP_H
@@ -32,7 +32,7 @@ public:
   cIptvProtocolUdp();
   virtual ~cIptvProtocolUdp();
   virtual int Read(unsigned char* *BufferAddr);
-  virtual bool Set(const char* Location, const int Parameter);
+  virtual bool Set(const char* Location, const int Parameter, const int Index);
   virtual bool Open(void);
   virtual bool Close(void);
   virtual cString GetInformation(void);
diff --git a/streamer.c b/streamer.c
index 8d2c753..9f68391 100644
--- a/streamer.c
+++ b/streamer.c
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: streamer.c,v 1.24 2007/10/19 21:36:28 rahrenbe Exp $
+ * $Id: streamer.c,v 1.25 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #include <vdr/thread.h>
@@ -77,7 +77,7 @@ bool cIptvStreamer::Close(void)
   return true;
 }
 
-bool cIptvStreamer::Set(const char* Location, const int Parameter, cIptvProtocolIf* Protocol)
+bool cIptvStreamer::Set(const char* Location, const int Parameter, const int Index, cIptvProtocolIf* Protocol)
 {
   debug("cIptvStreamer::Set(): %s:%d\n", Location, Parameter);
   if (!isempty(Location)) {
@@ -91,7 +91,7 @@ bool cIptvStreamer::Set(const char* Location, const int Parameter, cIptvProtocol
         }
      // Set protocol location and parameter
      if (protocol)
-        protocol->Set(Location, Parameter);
+        protocol->Set(Location, Parameter, Index);
      }
   return true;
 }
diff --git a/streamer.h b/streamer.h
index e4dd8a6..17de50b 100644
--- a/streamer.h
+++ b/streamer.h
@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: streamer.h,v 1.12 2007/10/19 21:36:28 rahrenbe Exp $
+ * $Id: streamer.h,v 1.13 2007/10/19 22:18:55 rahrenbe Exp $
  */
 
 #ifndef __IPTV_STREAMER_H
@@ -29,7 +29,7 @@ public:
   cIptvStreamer(cRingBufferLinear* RingBuffer, cMutex* Mutex);
   virtual ~cIptvStreamer();
   virtual void Action(void);
-  bool Set(const char* Location, const int Parameter, cIptvProtocolIf* Protocol);
+  bool Set(const char* Location, const int Parameter, const int Index, cIptvProtocolIf* Protocol);
   bool Open(void);
   bool Close(void);
   cString GetInformation(void);