This was left-over from the old console handling
code in Scapy-win. Now this caused a NameError:
"global name 'console' is not defined"

With IPython support enabled, any command line arguments
given to Scapy were incorrectly interpreted by the embedded
IPython shell as IPython command line arguments.
For example, "scapy -d" (to increase Scapy's debug level) did not work.

Add the following line to ~/.scapy_startup.py :
conf.interactive_shell="ipython

Not fully tested. Based on:
http://trac.secdev.org/scapy/ticket/3
http://trac.secdev.org/scapy/ticket/60

Add all classes to forge and dissect SCTP packets in scapy.

This argment is a python function applied to each packet to determine
if we have to stop the capture after this packet.
ex: stop_filter = lambda x: x.haslayer(TCP)

This includes: key, gre routing infos, sequence number, ...

This shall make it more convenient to use pdfdump()
and psdump() and automatically launch a viewer:

Default viewer for pdfdump() is Acrobat reader.
Please change your PATH variable to include the directory
where AcroRd.exe is placed.

Default viewer for psdump() is GSview. The gsview32.exe
executable is automatically searched for in GSview's
default installation directory:
%ProgramFiles%\Ghostgum\gsview
If it is not found, put the directory on your PATH.

You can manually set the paths to the executables by
changing the conf.prog.pdfreader and conf.prog.psreader
configuration parameters.

os.system() is deprecated, does not work correctly if the
path name of the executable includes spaces, and needs an
ampersand to put the called program in the background
(which does not work on Windows).
subprocess.Popen() solves all these problems.

dnet throws an "OSError: No error" exception when we want to get
the outgoing interface and the interface has no IP address.
This uncaught exception made Scapy exit.

When enumerating usable network interfaces we now only
try those that have an IP address, because the IP address
is needed anyway to construct the mapping between dnet
and pcap interface names.

This significantly improves Scapy's startup performance.

Some people have reported dnet interface names like "eth14"
on Windows.