JMF with IPv6

Hello!
I am trying to solve the MediaLocator problem wirh JMF and IPv6. I read the solution for JMF with IPv6 allready brought up in this forum and the article 'http://www.ctie.monash.edu.au/DSS-IPv6/jmf-ipv6.htm', but it is not working.
I checked all hints, and all my IPv6 settings like reverse lookup on my machine... but I still get the message 'Cannot create the DataSink: java.io.IOException: No Valid RTP MediaLocator
Failed to create a DataSink for the given output MediaLocator' when i try to transmit a rtp stream.
I am using Linux with working (allready tested), Java 1.5 and JMF2.1.1e
Does anybody has a suggestion how to solve my problem and how to use JMF with IPv6.
Thanks
Adam

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So I tried to solve this problem by searching from websites.
One suggestion is adding the -Djava.net.preferIPv6Addresses=true when using the java command. But it doesn't work.
Another suggestion is modify the RTPSocketAdapter, I have read this source code but I have no idea to modify it.
So if anyone has an idea to solve my problem, please advise me please. Your answer will be appreciated.
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Facing issue in HSRP configuration with IPV6

Hi,
i am trying to configure hsrp with ipv6 and all command are running for hsrp excep this command standby 1 ipv6 2001::10/64
and i have also tried standby 1 ipv6 2001::10, then showing error:- % invalid link-local address.
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Hi Daljitsinghtagore,
UPDATE:: I found this video from Cisco TAC, this will walk you through configguring IPv6 HSRP. I hope this helps
https://supportforums.cisco.com/videos/2829
I have never configured IPv6 HSRP, so you will have to bear with me.
But something I do notice off the bat is that you are using the '2001::/64' address space.
Link local addresses are addresses local to that interface and are used to reach neigbors hence the name link local. these addresses beguin with fe80::/10 im pretty sure if you tried fe80::10 as the IPv6 address your router would accept it.
As soon as you run the command ipv6 enable under an interface
e.g. router(config-if)ipv6 enable. - This enables a eui-64 link local address.
If you then do a 'sh ipv6 interface brief'
you should get an address starting fe80: this is your routers link loal address.
See below snippet from Cisco
"The purpose of this document is to provide an understanding of IPv6 Link-local address in a network. A link-local address is an IPv6 unicast address that can be automatically configured on any interface using the link-local prefix FE80::/10 (1111 1110 10) and the interface identifier in the modified EUI-64 format. Link-local addresses are not necessarily bound to the MAC address (configured in a EUI-64 format). Link-local addresses can also be manually configured in the FE80::/10 format using the ipv6 address link-local command.
These addresses refer only to a particular physical link and are used for addressing on a single link for purposes such as automatic address configuration and neighbor discovery protocol. Link-local addresses can be used to reach the neighboring nodes attached to the same link. The nodes do not need a globally unique address to communicate. Routers will not forward datagram using link-local addresses. IPv6 routers must not forward packets that have link-local source or destination addresses to other links. All IPv6 enabled interfaces have a link-local unicast address."
http://www.cisco.com/en/US/tech/tk872/technologies_configuration_example09186a0080ba1d07.shtml#intro
I will load up GNS3 later when I have some time to confirm.
Regards,
Liam
Message was edited by: Liam Kenneally

JMF with Fobs4jmf: Problem getting supported formats

I'm trying to use JMF with fobs4jmf to try stitching together video files into a single file. Fortunately, I found a sample program to do just that in the SDN website (http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/solutions/Concat.html).
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However, in the tryMatch method of Concat.java, I am getting an empty array of Format objects, represented by the "supported" variable, during a call to the following:
{color:#0000ff}TrackControl tc = pInfo[0].tracksByType[type][trackID].tc;
Format origFmt = tc.getFormat();
Format newFmt, oldFmt;
Format supported[] = tc.getSupportedFormats();
for (int i = 0; i < supported.length; i++) {
if (supported[i] instanceof AudioFormat) {
// If it's not the original format, then for audio, we'll
// only do linear since it's more accurate to compute the
// audio times.
if (!supported.matches(tc.getFormat()) &&
!supported[i].getEncoding().equalsIgnoreCase(AudioFormat.LINEAR))
continue;
{color:#000000}Here's my problem: While on debug mode, I see that the "supported" variable shows an empty array, when I look deeper in the TrackControl tc variable and look the its supportedFormats instance variable, I can see that it has a value. For my testing, I used a .mov file and the supportedFormats variable contains an {color:#0000ff}AudioFormat{color} with the value {color:#0000ff}mp4a, 32000.0 Hz, 16-bit, Stereo, BigEndian, Signed, FrameSize=32 bits{color}.
{color}
{color:#000000}I can't get past through this hurdle for now. Why am I getting an empty array of Format objects when the TrackControl tc variable actually contains value in its supportedFormats property?
I'd appreciate any help on this matter.
Anthony
{color}
{color}

I again don't have my code in front of me, but I did take a look at the sample code my code is based on...
Format format = tracks.getFormat();
if (tracks[i].isEnabled()) {
supported = tracks[i].getSupportedFormats();
Just a shot in the dark, but perhaps getSupportedFormats returns the empty set when the TrackControl object is disabled?
Try enabling the TrackControl before you try to get its supported formats, and see if that changes the behavior in any sort of meaningful way?

Error in feeding JMF with inputstream, please help

Hi,
in order to feed JMF with inputstreams, audioinputstreams actually, you have to modify the DataSource.java and write a custom one so that it accepts inputstreams for the construction of the datasource, because with MediaLocator you can only specify existing files in the hard disk or somewhere in the network.
Searching I found this ByteBufferDataSource, which allows you to construct a DataSource from a ByteBuffer object.
The problem is that when using it and trying to send the stream via RTP to another machine, i get the following error:
Exception in thread "JMF thread: com.sun.media.ProcessEngine@d6a05e[ com.sun.media.ProcessEngine@d6a05e ] ( configureThread)" java.lang.NullPointerException
 at com.sun.media.ProcessEngine.isRTPFormat(ProcessEngine.java:99)
 at com.sun.media.ProcessEngine.reenableHintTracks(ProcessEngine.java:107)
 at com.sun.media.ProcessEngine.doConfigure(ProcessEngine.java:63)
 at com.sun.media.ConfigureWorkThread.process(BasicController.java:1370)
 at com.sun.media.StateTransitionWorkThread.run(BasicController.java:1339)
This error has appeared in some other post, but haven�t found the solution to it, I guess is something to do with the file format.
So please, I really need your help with this, as I�m getting stuck in a academical project because of this. I attach the bytebufferdatasource
Thank you for your time,
bye
import javax.media.protocol.ContentDescriptor;
import javax.media.protocol.PullDataSource;
import java.nio.ByteBuffer;
import java.io.IOException;
import javax.media.MediaLocator;
import javax.media.Duration;
import javax.media.Time;
* @author Chad McMillan
public class ByteBufferDataSource extends PullDataSource {
protected ContentDescriptor contentType;
protected SeekableStream[] sources;
protected boolean connected;
protected ByteBuffer anInput;
protected ByteBufferDataSource(){
* Construct a <CODE>ByteBufferDataSource</CODE> from a <CODE>ByteBuffer</CODE>.
* @param source The <CODE>ByteBuffer</CODE> that is used to create the
* the <CODE>DataSource</CODE>.
public ByteBufferDataSource(ByteBuffer input, String contentType) throws IOException {
anInput = input;
this.contentType = new ContentDescriptor(contentType);
connected = false;
* Open a connection to the source described by
* the <CODE>ByteBuffer/CODE>.
* 
* The <CODE>connect</CODE> method initiates communication with the source.
* @exception IOException Thrown if there are IO problems
* when <CODE>connect</CODE> is called.
public void connect() throws java.io.IOException {
connected = true;
sources = new SeekableStream [1];
sources[0] = new SeekableStream(anInput);
* Close the connection to the source described by the locator.
* 
* The <CODE>disconnect</CODE> method frees resources used to maintain a
* connection to the source.
* If no resources are in use, <CODE>disconnect</CODE> is ignored.
* If <CODE>stop</CODE> hasn't already been called,
* calling <CODE>disconnect</CODE> implies a stop.
public void disconnect() {
if(connected) {
sources[0].close();
connected = false;
* Get a string that describes the content-type of the media
* that the source is providing.
* 
* It is an error to call <CODE>getContentType</CODE> if the source is
* not connected.
* @return The name that describes the media content.
public String getContentType() {
if( !connected) {
throw new java.lang.Error("Source is unconnected.");
return contentType.getContentType();
public Object getControl(String str) {
return null;
public Object[] getControls() {
return new Object[0];
public javax.media.Time getDuration() {
return Duration.DURATION_UNKNOWN;
* Get the collection of streams that this source
* manages. The collection of streams is entirely
* content dependent. The MIME type of this
* <CODE>DataSource</CODE> provides the only indication of
* what streams can be available on this connection.
* @return The collection of streams for this source.
public javax.media.protocol.PullSourceStream[] getStreams() {
if( !connected) {
throw new java.lang.Error("Source is unconnected.");
return sources;
* Initiate data-transfer. The <CODE>start</CODE> method must be
* called before data is available.
*(You must call <CODE>connect</CODE> before calling <CODE>start</CODE>.)
* @exception IOException Thrown if there are IO problems with the source
* when <CODE>start</CODE> is called.
public void start() throws IOException {
* Stop the data-transfer.
* If the source has not been connected and started,
* <CODE>stop</CODE> does nothing.
public void stop() throws IOException {
}

Sorry for the formatting, I attach it again here with well format:
the error was:
Exception in thread "JMF thread: com.sun.media.ProcessEngine@d6a05e[ com.sun.media.ProcessEngine@d6a05e ] ( configureThread)" java.lang.NullPointerException
 at com.sun.media.ProcessEngine.isRTPFormat(ProcessEngine.java:99)
 at com.sun.media.ProcessEngine.reenableHintTracks(ProcessEngine.java:107)
 at com.sun.media.ProcessEngine.doConfigure(ProcessEngine.java:63)
 at com.sun.media.ConfigureWorkThread.process(BasicController.java:1370)
 at com.sun.media.StateTransitionWorkThread.run(BasicController.java:1339)
and the java file for generating the datasource from the bytebuffer was:
import javax.media.protocol.ContentDescriptor;
import javax.media.protocol.PullDataSource;
import java.nio.ByteBuffer;
import java.io.IOException;
import javax.media.MediaLocator;
import javax.media.Duration;
import javax.media.Time;
* @author Chad McMillan
public class ByteBufferDataSource extends PullDataSource {
 protected ContentDescriptor contentType;
 protected SeekableStream[] sources;
 protected boolean connected;
 protected ByteBuffer anInput;
 protected ByteBufferDataSource(){
 * Construct a <CODE>ByteBufferDataSource</CODE> from a <CODE>ByteBuffer</CODE>.
 * @param source The <CODE>ByteBuffer</CODE> that is used to create the
 * the <CODE>DataSource</CODE>.
 public ByteBufferDataSource(ByteBuffer input, String contentType) throws IOException {
 anInput = input;
 this.contentType = new ContentDescriptor(contentType);
 connected = false;
 * Open a connection to the source described by
 * the <CODE>ByteBuffer/CODE>.
 * 
 * The <CODE>connect</CODE> method initiates communication with the source.
 * @exception IOException Thrown if there are IO problems
 * when <CODE>connect</CODE> is called.
 public void connect() throws java.io.IOException {
 connected = true;
 sources = new SeekableStream [1];
 sources[0] = new SeekableStream(anInput);
 * Close the connection to the source described by the locator.
 * 
 * The <CODE>disconnect</CODE> method frees resources used to maintain a
 * connection to the source.
 * If no resources are in use, <CODE>disconnect</CODE> is ignored.
 * If <CODE>stop</CODE> hasn't already been called,
 * calling <CODE>disconnect</CODE> implies a stop.
 public void disconnect() {
 if(connected) {
 sources[0].close();
 connected = false;
 * Get a string that describes the content-type of the media
 * that the source is providing.
 * 
 * It is an error to call <CODE>getContentType</CODE> if the source is
 * not connected.
 * @return The name that describes the media content.
 public String getContentType() {
 if( !connected) {
 throw new java.lang.Error("Source is unconnected.");
 return contentType.getContentType();
 public Object getControl(String str) {
 return null;
 public Object[] getControls() {
 return new Object[0];
 public javax.media.Time getDuration() {
 return Duration.DURATION_UNKNOWN;
 * Get the collection of streams that this source
 * manages. The collection of streams is entirely
 * content dependent. The MIME type of this
 * <CODE>DataSource</CODE> provides the only indication of
 * what streams can be available on this connection.
 * @return The collection of streams for this source.
 public javax.media.protocol.PullSourceStream[] getStreams() {
 if( !connected) {
 throw new java.lang.Error("Source is unconnected.");
 return sources;
 * Initiate data-transfer. The <CODE>start</CODE> method must be
 * called before data is available.
 *(You must call <CODE>connect</CODE> before calling <CODE>start</CODE>.)
 * @exception IOException Thrown if there are IO problems with the source
 * when <CODE>start</CODE> is called.
 public void start() throws IOException {
 * Stop the data-transfer.
 * If the source has not been connected and started,
 * <CODE>stop</CODE> does nothing.
 public void stop() throws IOException {
}

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HI,
I've heard this problem before, but I haven't heard of a resolution.
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MAttew "The reason it doesn't work is because label switching on a VRF aware BVI is only supported in the per-vrf label allocation mode. There's a mention of this in the configuration guide shown here;
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Alexei Kiritchenko
on Aug 20, 2012 6:10 AM
Hi Pichet,
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http://www.cisco.com/en/US/docs/routers/asr9000/software/asr9k_r4.1/interfaces/configuration/guide/hc41irb.html#wp1030591
With this configuration we'd use an aggregate label and would do VRF IP lookup instead when a packet arrives from the core.
Regards,

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Hi all,
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Hi all,
I just configured our domaincontroller with an IPv6 address.
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Kindest regards,
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