NS-2 Installation Instructions
------------------------------

- cd to your home directory

- Type  ~ebelding/public_html/courses/276/f04/install-ns

  - What this will do is look for a NS-2.26 directory off of your
    root directory.  If one exists, it will copy it into NS-2.26.old
    If NS-2.26.old already exists, it will first DELETE the copy of
    that directory, and then move NS-2.26 into NS-2.26.old

  - Then, it will create a new NS-2.26 directory and extract all
    the ns-2 files into it.

- cd NS-2.26

- Type "make clean"

- Type "make"

  - This will compile all the ns-2 files in the NS-2.26 directory,
    and link them appropriately.

Because there is also a global copy of NS-2, you need to make sure
when you run NS-2 you are running your local copy, not the global
one.  Either modify your path, or run ~/NS-2.26/ns abc.tcl, 
*not* ns abc.tcl.