Question on JxtaMulticastSocket

Newbie to JXTA, so bear with me! :-)

 

In the tutorial, there is a comment where the first call to
JxtaMulticastSocket.receive() that it expects to see the message it sent
first, and that the right thing to do is to check if it originated from this
peer. It also states that it would check the datagram address against the
PeerID.

 

I tried to implement this, and I ended up checking it this way:

 

PeerID peerID = netPeerGroup.getPeerID();          // returns
"urn:jxta:uuid-596..."

String packetHostName = rpacket.getAddress().getHostName();
// returns "uuid-596."

 

As you can see, they match except for the "urn:jxta" in front of the PeerID.
Two questions:

 

1.	Is there a different method that I can use to match the
DatagramPacket address vs. the PeerID?
2.	If not, is the "urn:jxta" standard on all PeerIDs, so should I just
match strings after the "urn:jxta"?

 

Thanks for your help.

 

John