This utility traces the route packets take to a user specified host.
QEMU user networking (the type of networking we currently have setup)
does not support sending "real" raw IPv4 packets, and as such we cant
specify a custom TTL value. As a result, this utility will only work
on real hardware, qemu setup with tun networking (requires root) and
other hypervisors that support bridged adapters (VirtualBox/VMWare).
