umview-mod-umlwip 0.6-1 (amd64 binary) in ubuntu quantal

 View-OS is a novel approach to the process/kernel interface. The semantics of
 each system call can be assigned process by process giving the user the right
 to decide which view of the system each process has to join. Each process can
 "see" a different file system structure, networking resources, processor,
 devices. Moreover some of the resources can be provided by the user
 him/herself, thus these resource can be private to the single process and are
 not known a priori by the system. Groups of processes can share the same view
 but this is just an optimization to share management methods.
 .
 For more information, see http://wiki.virtualsquare.org
 .
 UMView is a user-mode implementation of View-OS. Processes are run with a
 controlling daemon that captures all the system calls (at present using the
 ptrace() system call) and uses dynamically loadable modules to change their
 semantic.
 .
 This package contains the old um_lwip module, a gateway to the LWIPv6
 user-level networking library (see liblwipv6-2), and a newer one, called
 umnetlwipv6. They make possible for processes inside UMView to use virtual
 network interfaces that are connected to the external world through a TUN/TAP
 device or a VDE switch.