* UPnP:

      - Fix up port handling, add some logging on bind fails
      - Force IPv4 only for binds

router/java/src/net/i2p/router/transport/UPnPManager.java

@@ -48,6 +48,9 @@ public class UPnPManager {
         _context = context;
         _manager = manager;
         _log = _context.logManager().getLog(UPnPManager.class);
+        // UPnP wants to bind to IPv6 link local interfaces by default, but what UPnP router
+        // is going to want to talk IPv6 anyway? Just make it easy and force IPv4 only
+        org.cybergarage.upnp.UPnP.setEnable(org.cybergarage.upnp.UPnP.USE_ONLY_IPV4_ADDR);
         _upnp = new UPnP(context);
         _upnp.setHTTPPort(_context.getProperty(PROP_HTTP_PORT, DEFAULT_HTTP_PORT));
         _upnp.setSSDPPort(_context.getProperty(PROP_SSDP_PORT, DEFAULT_SSDP_PORT));
@@ -150,7 +153,7 @@ public class UPnPManager {
 
     public String renderStatusHTML() {
         if (!_isRunning)
-            return "<a name=\"upnp\"><<b>UPnP is not enabled</b>\n";
+            return "<a name=\"upnp\"><b>UPnP is not enabled</b>\n";
         return _upnp.renderStatusHTML();
     }
 }

router/java/src/org/cybergarage/http/HTTPServer.java

@@ -91,6 +91,7 @@ public class HTTPServer implements Runnable
 			serverSock.setSoTimeout(10*1000);
 		}
 		catch (IOException e) {
+			Debug.warning("HTTP server open failed " + addr + " " + port, e);
 			return false;
 		}
 		return true;

router/java/src/org/cybergarage/upnp/ControlPoint.java

@@ -786,9 +786,13 @@ public class ControlPoint implements HTTPRequestListener
 		HTTPServerList httpServerList = getHTTPServerList();
 		while (httpServerList.open(bindPort) == false) {
 			retryCnt++;
-			if (UPnP.SERVER_RETRY_COUNT < retryCnt)
+			if (UPnP.SERVER_RETRY_COUNT < retryCnt) {
+				Debug.warning("Failed to open HTTP event listener port " + bindPort);
+				// I2P do we really need this, or can we just break ?
 				return false;
-			setHTTPPort(bindPort + 1);
+			}
+			// I2P go down not up so we don't run into other I2P things
+			setHTTPPort(bindPort - 1);
 			bindPort = getHTTPPort();
 		}
 		httpServerList.addRequestListener(this);
@@ -799,8 +803,10 @@ public class ControlPoint implements HTTPRequestListener
 		////////////////////////////////////////
 		
 		SSDPNotifySocketList ssdpNotifySocketList = getSSDPNotifySocketList();
-		if (ssdpNotifySocketList.open() == false)
+		if (ssdpNotifySocketList.open() == false) {
+			Debug.warning("Failed to open SSDP notify port 1900");
 			return false;
+		}
 		ssdpNotifySocketList.setControlPoint(this);			
 		ssdpNotifySocketList.start();
 		
@@ -813,9 +819,12 @@ public class ControlPoint implements HTTPRequestListener
 		SSDPSearchResponseSocketList ssdpSearchResponseSocketList = getSSDPSearchResponseSocketList();
 		while (ssdpSearchResponseSocketList.open(ssdpPort) == false) {
 			retryCnt++;
-			if (UPnP.SERVER_RETRY_COUNT < retryCnt)
+			if (UPnP.SERVER_RETRY_COUNT < retryCnt) {
+				Debug.warning("Failed to open SSDP search response port " + ssdpPort);
 				return false;
-			setSSDPPort(ssdpPort + 1);
+			}
+			// I2P go down not up so we don't run into other I2P things
+			setSSDPPort(ssdpPort - 1);
 			ssdpPort = getSSDPPort();
 		}
 		ssdpSearchResponseSocketList.setControlPoint(this);

router/java/src/org/cybergarage/upnp/UPnP.java

@@ -37,7 +37,8 @@ public class UPnP
 	public final static String NAME = "CyberLink";
 	public final static String VERSION = "1.7";
 
-	public final static int SERVER_RETRY_COUNT = 100;
+	// I2P was 100
+	public final static int SERVER_RETRY_COUNT = 4;
 	public final static int DEFAULT_EXPIRED_DEVICE_EXTRA_TIME = 60;
 
 	public final static String getServerName()