Latest snapshot of the development trunk is available for download from distribution server:

https://sourceforge.net/projects/jnetpcap/files/

The latest build fixes numerous bugs and adds support for Ubuntu and RHEL linuxes. The builds were also released with both the official packaging such as RPM/DEB and in compressed tar format.

Build 1.3.b0005 was a private build and differs only slightly with 1.3.b0006.