Binary package “libnet6-1.3-0-dbg” in ubuntu precise

Network access framework for IPv4/IPv6 - debugging symbols

 net6 is a library which eases the development of network-based applications
 as it provides a TCP protocol abstraction for C++. It is portable to both
 the Windows and Unix-like platforms.
 .
 These are the debugging symbols for net6, needed only if you try to debug
 an application using it.