Not yet.
To make the net private, just choose a different network name in Phex.
Please have a look at the phex Search class to see if you grasp it.
https://phex.svn.sourceforge.net/svn...ry/Search.java
You can get the whole code via subversion:
svn co
https://phex.svn.sourceforge.net/svn...ex/phex/trunk/